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Aerial unmanned aerial vehicle and underwater robot: how to rescue by science and technology by professional forces

■ Write in front.

The sea is crossing, and the soldiers are showing their true colors again. Between the peaks and valleys, and the breakwaters, the vast number of officers and men resolutely implemented the spirit of President Xi’s important instructions, carried forward the glorious tradition that our army can fight hard, rushed where it was needed, and fought where it was difficult, which played an irreplaceable role as a commando and became the mainstay of emergency rescue and disaster relief.

The police badge shines in the stormy waves, and the battle songs are loud and clear.

Since mid-June, many provinces, autonomous regions and municipalities in the south have experienced sudden natural disasters such as rainstorm, waterlogging, breach, landslide and hurricane. At that time, Poyang emergency, Yancheng emergency, Wuhan emergency …

At a critical juncture, as a national emergency rescue professional force, the Armed Police Hydropower Unit was moved at the news, with more than 6,000 troops and more than 1,000 sets of equipment, and rushed to help at night. A series of rescue battles were launched in nine provinces, autonomous regions and municipalities, including Jiangxi, Hubei, Chongqing, Guangxi, Sichuan, Jiangsu, Guizhou, Anhui and Fujian.


Rescue officers and soldiers are dealing with urban waterlogging in Jingdezhen, Jiangxi Province. Photo by Xu Yinghua

The armed police hydropower unit moved to nine provinces, autonomous regions and municipalities for emergency rescue and disaster relief, and attacked Lien Chan and Lien Jie in multiple ways-

Professional strength, show your talents in times of crisis.

■ Special correspondent of this newspaper Lu Wei

Where is the most critical, officers and men will fight there.

According to the report, 600 officers and men of the Second Corps have arrived in the disaster area. According to the report, the search and rescue squadron of the First Corps is on its way to the scene of the mountain collapse.

On the evening of June 21, the operational command center of the Armed Police Hydropower Command was brightly lit, and many pictures of the disaster relief scene were presented on the big screen. The telephone rang one after another, and the staff hurried to report the disaster and give instructions. The atmosphere was tense and dignified.?

The mission is like a mountain, and the soldiers are expensive. Orders were rushed out, and rescue teams rushed in.

In Wuhan, Hubei Province, 104 officers and men of the seven detachments kept pumping and draining water, searching for people from house to house and rushing to transport materials. Yan Qiaomu, the squadron leader who led the team, jumped into the water from time to time to explore the road for the assault boat full of affected people. The danger had just been ruled out, and they had no time to change their wet camouflage uniforms, and they received an order to move to Huanggang Qichun …

In Jiujiang, Jiangxi, the Second Corps was divided into Yongxiu, Pengze and Gongqingcheng roads to stop the flood. Collapse, piping, breach … It is urgent to eliminate the disaster! Yang Taoyong, the squadron leader of the Fourth Team and the First Squadron, was born in Jiangxi. He had rheumatism. After more than 40 hours of rain immersion, his legs ached. For two days and two nights, Yang Taoyong did not take a break and led the soldiers to deal with one danger after another.

In Youyang, Chongqing, a landslide formed a dammed lake, and 89 officers and men of the eighth detachment rushed to help. Feng Guiquan, the fourth-class sergeant, took the lead in wading and exploring the road, carrying explosives, and leading his comrades to drill holes on boulders with hand-held pneumatic drills. Dust and sweat gather together, and everyone becomes a clay statue. When the mud on his face dries, it forms a shell. After the loud noise, pieces of boulders were accurately blasted, and the officers and men fought hard for 50 hours, eliminating the danger in time.

In Pingle, Guangxi, in the face of massive mountain collapse and possible secondary collapse at any time, 115 officers and men of the first corps put life and death behind them and searched for signs of life and repaired life passages at the first time. In the hot summer, officers and men with chapped lips and peeling faces can be seen everywhere, but no one flinched.

In Lu ‘an, Anhui Province, there is a mountain that may collapse at any time and a rushing river on the other. 110 officers and men of the second detachment braved the dangers of rolling stones and landslides and concentrated on large excavators and loaders to open the way.

Changzhou, Jiangsu, Mianzhu, Sichuan, Huanggang, Hubei … Where is the most critical, officers and men will fight there.

Professional advantage, the first line of emergency rescue shows great power

In the air, the drone continuously returns the disaster image; At the breach, walking excavators and all kinds of heavy machinery went into battle; In flood, radar velocimeter and underwater robot monitor the change of water regime in real time; At the scene of the mountain collapse, snake eyes and radar detectors carried out accurate search and rescue …

In the rescue of multi-type disasters in many places, a large number of high-tech equipment and professional skills of the Armed Police Hydropower Unit have been put into actual combat to help rescue. This elite division, which has repeatedly made outstanding achievements in urgent and dangerous tasks, not only dares to fight hard and win the battle, but also shows the power of scientific and technological rescue everywhere.

The danger of Chongqing Youyang dammed lake was discovered by hydropower officers and soldiers when they used six-rotor drones to investigate. Six-rotor UAV is affectionately called "clairvoyance" for disaster detection by officers and men. Its high-definition camera can instantly image the disaster site, which has the advantages of high definition and large scale. After data processing by software, officers and men completed the three-dimensional laser scanning and analysis within 1 km upstream of the dam body in only 2 hours, and used the underwater robot imaging system to construct 360-degree panoramic image data of the dam body, which provided first-hand information and won valuable time for effectively handling the danger.

Specialization, mechanization and collectivization are the advantages of hydropower units to participate in emergency rescue and disaster relief. The whole process of mechanized operation of Poyang breach plugging took only 47 hours for more than 500 officers and men of the hydropower unit to complete the task. It takes 24,600 cubic meters of filling material and nearly 700,000 sandbags to plug the breach. If we still rely on "crowd tactics" and shoulder to shoulder, it is impossible to achieve it!

In Wuhan, Hubei Province, five "Dragon Suction" super-strong drainage vehicles quickly pumped and drained many stagnant water areas along the Jushui River in Xinzhou. 3,000 cubic meters of water is drained in only one hour, which is more than five times more efficient than the traditional drainage method. This type of drainage vehicle has a large working range, large flow and flexibility, and is especially suitable for pumping and draining water in urban roads, subway underpasses, underground garages and highways, and has played a great role in the flood control in many cities.

A landslide occurred in Dafang, Guizhou Province. During more than 40 hours of around-the-clock rescue, the officers and men of the three detachments used excavators, all-terrain emergency rescue vehicles, sound waves, radar and other professional equipment to search for the lost personnel by the tactics of "machinery first, labor second, peeling layer by layer, digging slowly and uncovering the cover" until the last lost person was found.

At the rescue site of Wujiuwei, Wangjiang County, Anhui Province, the Armed Police Hydropower Unit first used the new flood control and rescue equipment "water-filled rubber sub-dike". Compared with the traditional hand-dug shoulder, the "water-filled rubber sub-dike" has the advantages of small storage volume, light transportation and rapid assembly, and can be used repeatedly. According to reports, with this flood-fighting "artifact", it only takes 12 people two hours to build a 100-meter flood control sub-dike, and no soil is needed, which can quickly control the danger of flood overflow and greatly improve the rescue efficiency.

Party member cadres, charge before the critical moment.

"I am party member, I will go first" and "Give me the most difficult task". The majority of party member cadres regard the first line of emergency rescue as a classroom to learn and practice the spirit of President Xi’s important speech on July 1, and share their worries for the party and add luster to the military flag by setting an example.

Party member charge before, unprecedented strength. In this special examination room for emergency rescue, 92 cadres at or above the regimental level in hydropower units were appointed to take charge, 52 government cadres were enriched to the grassroots level, 214 non-commissioned officers returned to the team ahead of time, and 12 temporary party committees, 63 temporary party branches and 216 temporary party groups were established, which became the "leading geese" and "backbone" of the front line of disaster relief.

Party member Cheng Huangxiao, a petty officer of the Fourth Team, lives in Jingdezhen, and his house was also flooded. He stayed at home for 4 hours, followed the troops for 32 hours, and transferred 17 trapped old people and children. Cheng Huangxiao didn’t have time to take a look at his wife and children at home close at hand, and the troops received an order to rescue Poyang. Without saying anything, he threw himself into a new battle with his comrades. On the way to Poyang, he took out his mobile phone and found that there were 5 missed calls and 8 text messages. When I opened it, it was all from my family. One of my wife’s short messages said, "Husband, the family is fine. Don’t worry, more people need you."

A large number of steel gabions need to be welded to seal the breach in Poyang. party member Zhao Chuanming, the squad leader and petty officer of the welder class of the Sixth Team, led the welder class to discharge, tie and weld all the time. After several days of high-intensity work, his trouser legs and shoes were all burnt with holes, and his eyes were bloodshot and burning with arc light. In the face of the order of the platoon leader to take a rest, he was unmoved.

It is understood that since the end of June, eight detachments of the Armed Police Hydropower Force have successively launched rescue operations in 38 cities and counties in nine provinces, autonomous regions and municipalities, and undertaken nine types of tasks, including personnel search and rescue transfer, breach sealing, dammed lake evacuation, road rushing, waterlogging evacuation, river dredging, electric power emergency repair, dam reinforcement and so on. Hydropower officers and men have made multi-channel attacks, multi-point rescue, and Lien Chan’s winning streak.

(The People’s Liberation Army Daily, July 14, 2016, 05 edition)

The expert seminar on the cinema film Chang ‘an Chang ‘an was held in Beijing. Experts in the industry believe that it has filled the gap in the film with the theme of "Belt and Road".

  International Online Shaanxi News (Reporter Liu Honghua): On the afternoon of July 5th, an expert seminar on the movie Changan was held in Beijing. The conference focused on the characterization, artistic exploration, and the significance of promoting the "Belt and Road" and promoting international cooperation in film and television. The participating experts spoke highly of the film’s theme conception, artistic characteristics, actors’ performances, as well as multicultural expression, multi-time narrative and multi-country creative cooperation.

An expert seminar on the movie Chang ‘an Chang ‘an was held in Beijing.

  A strategically located building serves as a pulse for international cooperation in China film industry.

Huang Yichuan, member of the 14th Chinese People’s Political Consultative Conference and researcher of China Film Art Research Center, presided over the seminar.

  As the first China-Iranian cooperative film under the background of the initiative of jointly building the Belt and Road, the film Chang ‘an Chang ‘an not only has profound story content and exquisite artistic expression, but also has far-reaching practical significance and historical connotation.

The cinema film "Chang 'an Chang 'an" expert viewing seminar was held in Beijing. Industry experts believe that it has filled the gap in the film with the theme of "Belt and Road" _fororder_ Speech by Abu Talifu, Political Counselor of Kazakh Embassy in China

Abu Talifu, Political Counselor of Kazakh Embassy in China, made a speech.

  Abu Talifu, Political Counselor of Kazakhstan Embassy in China, said that in recent years, the relationship between Kazakhstan and China has become closer and closer, and cooperation has deepened. The film Chang ‘an Chang ‘an is a love story between the people of Kazakhstan and China, which will further promote the exchanges between the two peoples and the cooperation between the two countries.

  Iranian Zadeh, Cultural Counselor of the Iranian Embassy in China, said that in terms of culture, both countries are ancient civilizations. Iranian filmmakers have participated in the screenwriting, producer, editing and composition of the film Chang ‘an Chang ‘an, hoping that the film will be released in Iran, which I believe will promote the better relations between Iran and China.

Zhang Ling, editor-in-chief of the Film Channel Program Center, spoke.

  Zhang Ling, editor-in-chief of the program center of the film channel, pointed out that as a film with the theme of "One Belt, One Road", "Chang ‘an Chang ‘an" is not superficial, but a small incision of self-salvation of a Kazakh woman, trying to deeply explore the hidden humanity behind the transnational marriage, and at the same time show the inside story of Chang ‘an in ancient and modern times and the culture and folk customs of different countries. The filming process of the film is also a promotion of the spirit of Silk Road.

Zhang Hong, member of the former party group and secretary of the Secretariat of the China Federation of Literary and Art Circles, secretary of the former party group of the China Film Association and vice chairman of the Association, spoke.

  Zhang Hong, a member of the former party group of the China Federation of Literary and Art Circles and secretary of the Secretariat, and the former party group secretary of the China Film Association and vice chairman of the Association, believes that the film Chang ‘an Chang ‘an fully reflects the concept of "five links" and fills the gap in the film with the theme of "Belt and Road"; At the same time, as a sincere work of cooperation among filmmakers from many countries, it is of international significance for the exchange and mutual learning of civilizations. In terms of artistic creation, the film’s characters are full in three dimensions, the story is true and credible, and the expression of love, affection and nostalgia is subtle and touching; In addition, music is also eye-catching, which plays a key role in setting off the film atmosphere and expressing the theme.

Qin Zhengui, Director of Publicity Department of the Communist Party of China Film Script Planning and Planning Center, spoke.

  Qin Zhengui, director of the Publicity Department of the Communist Party of China Screenplay Planning and Planning Center, said that the film "Chang ‘an Chang ‘an" really achieved the co-production of many countries and was the success of multi-party cooperation. The narrative rhythm of the film is smooth, and the actors perform brilliantly. At the same time, the traditional narrative and modern civilization are skillfully combined. It is expected that the film will meet audiences in Kazakhstan, Iran and other countries faster and achieve good results in the market.

Xia Meng, member of the 13th Chinese People’s Political Consultative Conference, vice president of China Documentary Society and national first-class screenwriter, made a speech.

  Xia Meng, member of the 13th Chinese People’s Political Consultative Conference, vice president of the China Documentary Society and a national first-class screenwriter, said that women-themed films have attracted worldwide attention. The performance of the actors in the movie Chang ‘an Chang ‘an is commendable. For example, Alima makes Ayana’s characters full of introverted tension through the expression, body language and inner feelings. Only when people’s hearts are connected can business cooperation be smooth. The film Chang ‘an Chang ‘an brings inspiration to filmmakers, and from a broader perspective, we can find movie themes in the lives of people in various countries.

Ekbel Mi Jiti, member of the 11th and 12th Chinese People’s Political Consultative Conference and executive vice president of China Film Literature Society, made a speech.

  Aikebaier Mi Jiti, member of the 11th and 12th Chinese People’s Political Consultative Conference and executive vice president of the China Film Literature Society, said that the key to popular support is cultural exchange. As a film jointly produced by many countries, the film Chang ‘an Chang ‘an fits the spiritual core of the "One Belt, One Road" initiative.

The cinema film "Chang 'an Chang 'an" expert viewing seminar was held in Beijing. Industry experts believe that it has filled the gap in the film with the theme of "Belt and Road" _fororder_ Hou Guangming, former party secretary of Beijing Film Academy, made a speech

Hou Guangming, member of the 13th Chinese People’s Political Consultative Conference and former Party Secretary of Beijing Film Academy, spoke.

  Hou Guangming, member of the 13th Chinese People’s Political Consultative Conference and former Party Secretary of the Beijing Film Academy, believes that the film Chang ‘an Chang ‘an is a realistic work with a unique theme. By showing the entanglement of marriage and family and self-redemption, it reflects the difficulty of transnational love and has rich connotations, which makes the film more realistic, durable and representative. The bold attempt of the film Chang ‘an Chang ‘an in multi-cultural presentation and multi-country joint shooting highlights the great potential of the film "going out" and hopes that the film Chang ‘an Chang ‘an will achieve good benefits in building a "Belt and Road" country.

Rao Shuguang, President of China Film Criticism Society, made a speech.

  Rao Shuguang, president of the China Film Criticism Society, said that the core of the film is human art. The plot logic of the film Chang ‘an Chang ‘an is clear, the narrative is smooth and the completion is high, and the pursuit of artistic differentiation and Chinese aesthetic spirit is seen. It is worth noting that the film also gives full play to the elements of Shaanxi opera, and at the same time, from the perspective of tourism, it naturally shows the two "Chang ‘an" in ancient and modern times, so that the audience can’t help but want to visit Xi ‘an. China’s films seek the greatest common denominator of different cultures in international cooperation, and the film Chang ‘an Chang ‘an has brought a lot of enlightenment.

Ban Yongji, former deputy director and first-class inspector of the Seventh Research Department of the Central Party History and Literature Research Institute, spoke.

  Ban Yongji, former deputy director and first-class inspector of the Seventh Research Department of the Central Party History and Literature Research Institute, said that the film Chang ‘an Chang ‘an is based on the story of Chinese traditional culture, refining the symbolic concept of cultural communication, expanding the connotation of Chinese culture in the times, and taking into account the cultural aesthetic demands of people from different countries. By telling the story of people from all countries knowing each other and loving each other, it shows the significance of building the "Belt and Road Initiative" to benefit the world.

Tang Ke, Deputy Director of Film Channel Program Center, made a speech.

  Tang Ke, deputy director of the program center of the film channel, said that the film "Chang ‘an Chang ‘an" is a work that conforms to the initiative of building the "Belt and Road" and promotes exchanges and mutual learning among civilizations; It is a work with multiple time-space narrative structures, which deepens the theme, enriches the connotation and can arouse the audience’s thinking. It is an online performance of actors, and the characterization is very successful, reaching a high artistic level.

Zhang Wei, Vice President of China Film Criticism Society, spoke.

  Zhang Wei, vice president of China Film Criticism Society, believes that the film Chang ‘an Chang ‘an shows the comparative reflection between contemporary life and ancient classics, the political demands and artistic themes go hand in hand, the triple narrative and the triple time and space care for each other, and the static performance and dynamic performance complement each other.

Zhao Weifang, Director of Film and Television Institute of China Academy of Art and Vice President of China Film Criticism Society, made a speech.

  Zhao Weifang, director of the Film and Television Institute of the Chinese Academy of Art and vice president of the China Film Criticism Society, said that the film Chang ‘an Chang ‘an is the embodiment of the creative transformation and innovative development of excellent traditional culture, and at the same time, the design of Iranian female films is seen in the film. In addition, the performance of actors such as Alima is also the highlight of the film.

The expert seminar on the cinema film Chang 'an Chang 'an was held in Beijing. Experts in the industry believe that it has filled the gap in the film with the theme of "Belt and Road" _fororder_ Zuo Heng, director of the film culture research department of China Film Art Research Center, made a speech

  Zuo Heng, Director of Film Culture Research Department of China Film Art Research Center, made a speech.

  Zuo Heng, director of the film culture research department of China Film Art Research Center, said frankly that Chang ‘an Chang ‘an put the grand narrative into the tiny relationship between two people, which brought enlightenment to the road of co-production in many countries. And this road needs more delicate movie stories and needs the careful care of filmmakers from many countries.

Chen Ruijun, a member of the Chinese Writers Association, spoke.

  Chen Ruijun, a member of the Chinese Writers’ Association, said that the film Chang ‘an Chang ‘an has a profound meaning and a moving story. It is not confined by the grand theme, but skillfully uses the ups and downs of personal destiny to connect the communication between countries building the "Belt and Road" in series, which is refreshing. I believe that the film will get good response in various countries.

  Multi-country cooperation to create China — Moving story of Central Asia

Speech by Lin Siwei, Deputy Director of China Film Archive and Deputy Director of China Film Art Research Center.

  As the organizer of the seminar, Lin Siwei, deputy director of China Film Archive and deputy director of China Film Art Research Center, said in his speech that the film "Chang ‘an Chang ‘an" is a vivid practice of close cooperation among filmmakers from many countries, actively responding to the initiative of building the "Belt and Road" and telling the story of the "Belt and Road" with movies. The film shows the modern symbols and historical and cultural elements of Xi ‘an, the starting point of the ancient Silk Road, realizes the presentation of multinational cultures and embodies the human values of innovation, cooperation and integration. China Film Archive will give full play to its own resources and provide support for the promotion, distribution and screening of the film Chang ‘an Chang ‘an and participation in international film festivals.

Speech by Liu Chi, Vice President of CCTV International Online

  In his speech, Liu Chi, vice president of International Online of China Central Radio and Television General Station, said that film, as an important link in the construction of international communication capacity and cultural soft power, is one of the important forms of cultural products for a country to spread abroad. In recent years, International Online has actively planned and promoted high-quality film projects under international cooperation, and the film Chang ‘an Chang ‘an is one of the achievements of innovative exploration. The film takes the Chinese-European tourist train as the story link, integrates the traditional cultural elements such as the Legend of the White Snake in the Qin Opera, and takes pictures in the cultural places such as the Mausoleum Museum of the First Qin Emperor and the City Wall of Xi ‘an, which makes the film Chang ‘an Chang ‘an full of the silk road spirit, rich cultural atmosphere and strong future expectations.

Shi Jia, a member of the Shaanxi Provincial Political Consultative Conference and producer of the film Chang ‘an Chang ‘an, introduced the film.

  Shi Jia, a member of the Shaanxi Provincial Political Consultative Conference and producer of the film Chang ‘an Chang ‘an, said that the two Chang ‘an in the film name, one representing the capital of the Tang Dynasty, an open and inclusive international metropolis, and the other representing Xi ‘an, which is building a national central city, complement each other. In addition, the story of the heroine in the film begins with the first special train from Almaty, Kazakhstan to Xi ‘an. On July 2-4, the Supreme Leader of president paid a state visit to the Republic of Kazakhstan. In a joint statement, the two countries pointed out that they are willing to jointly support the China-Central Asia humanistic tourism train, including exploring the first Xi ‘an-Almaty humanistic tourism train. The perfect coincidence of movie dream and development reality highlights the time value of the movie Chang ‘an Chang ‘an.

Zhong Zhang, director of the film Chang ‘an Chang ‘an, introduced the creative process.

  Zhong Zhang, director of the film Chang ‘an Chang ‘an, said that the film Chang ‘an Chang ‘an spans 30 years in time and space, and tells the story of the future time and space on the international tourist train in Central Europe in 2031. The film connects the future, the present and the past in series through the memories of women who have suffered from the marriage crisis, and shows her psychological course of self-healing from the perspective of a foreign woman, realizing reconciliation and connection between different countries, nationalities and people. The film is an exploration of international art forms, looking for people’s spiritual commonalities among different countries and nations.

The expert seminar on the cinema film Chang 'an Chang 'an was held in Beijing. Experts in the industry believe that it has filled the gap in the film with the theme of "Belt and Road" _fororder_ Alima, starring in the film Chang 'an Chang 'an, spoke.

  Alima, starring in the movie Chang ‘an Chang ‘an, speaks.

  Alima, the star of the movie Chang ‘an Chang ‘an, said in her speech: "I played Ayana, a character who realized self-reconciliation and redemption after experiencing the pain of transnational marriage. With the joint efforts of all the main creators, the film has received extensive attention, hoping to build a ‘ Belt and Road ’ Stories contribute their own strength. "

He Fei, Iranian producer of the film Chang ‘an Chang ‘an, spoke.

  He Fei, an Iranian producer of the film Chang ‘an Chang ‘an, said in his speech: "The filmmakers of Iran and China have overcome many difficulties and completed real cooperation, which makes the film Chang ‘an Chang ‘an meaningful. I look forward to more cooperation between Iran and China in the film industry in the future. "

Hu Die, producer of the film Chang ‘an Chang ‘an and general manager of Shaanxi Butterfly Effect Entertainment Media Co., Ltd., made a concluding speech.

  Hu Die, the producer of the film Chang ‘an Chang ‘an and the general manager of Shaanxi Butterfly Effect Entertainment Media Co., Ltd., said in his concluding speech that the film Chang ‘an Chang ‘an bears multiple meanings and echoes and interprets the spirit of the times contained in the initiative to jointly build the Belt and Road Initiative, hoping to convey the concept of openness and tolerance in the form of art and inspire people’s respect and appreciation for diversity.

  The film Chang ‘an Chang ‘an is created by China, Iranian and Kazakh filmmakers, and plays China — A film of transnational love in Central Asia. This film-watching expert seminar is not only a review and summary of the works, but also a discussion and prospect of the direction of literary and artistic creation in the new era, international cooperation and innovation, and China’s story expression, which will provide rich enlightenment for the internationalization of China films, empower China films and convey the voice of China.

  It is reported that the film "Chang ‘an Chang ‘an" expert viewing seminar was hosted by China Film Art Research Center and China Radio and Television General Station International Online, and was undertaken by China Film Newspaper and International Online Shaanxi Channel.

Nucleic acid testing institutions have successively faked? National Health Commission responded.

9401669765404497

Figure | China Network

Source | Cybertron Equipment 

Author | Qinjiu Dongtai

On the afternoon of November 29th, the press conference of the State Council Joint Defense and Control Mechanism was held. National Health Commission responded to the recent incidents in which nucleic acid testing institutions were seriously dealt with because of fraud and other acts:

"For nucleic acid testing, we have always strictly controlled the access and quality of testing qualifications, constantly optimized technical specifications, and focused on strengthening the supervision of testing institutions, including third-party testing institutions. Since the beginning of this year, the health administrative departments in Beijing, Hefei, Anhui, Shijiazhuang, Hebei, Xuchang, Henan, Inner Mongolia and other places have found some illegal problems in the supervision of testing institutions, and all of them have been severely punished. Some illegal institutions and individuals have also been investigated for criminal responsibility.

In the next step, we will continue to strengthen supervision, and resolutely deal with serious violations of the law by issuing false test reports. "

In the past few days, nucleic acid detection has been caught in the whirlpool of public opinion, while Shenzhen nuclear gene is the whirlpool in the whirlpool.

01 Constant violations and "expansion"?

On November 25th, a notice from Lanzhou Health and Health Commission became the focus of public opinion.

According to the notification, at 1 o’clock on November 24, the staff of Lanzhou Nuclear Huaxi Laboratory mistakenly entered the list information of individuals with abnormal nucleic acid testing into the negative personnel information package and uploaded it to the work system, so that the health code of individual persons to be transported showed negative nucleic acid testing. Lanzhou Health and Health Commission said that Lanzhou Nuclear Huaxi Laboratory will be dealt with seriously.

49301669765405229

Enterprise investigation shows that this Lanzhou Nuclear Huaxi Laboratory (hereinafter referred to as "Lanzhou Huaxi") was established just over three months ago. Just over a year ago, Lanzhou Huaxi’s brother company, Jinan Huaxi Medical Inspection Co., Ltd. (hereinafter referred to as "Jinan Huaxi"), was notified by the Health and Health Commission of Xingtai City, Hebei Province for its nucleic acid detection fraud.

It has been observed that since 2020, laboratories related to nuclear Hua Xi have been punished many times.

99651669765405283

The parent company of these involved companies is Shenzhen Nuclear Gene Technology Co., Ltd. (hereinafter referred to as Shenzhen Nuclear Gene), and the founder is Zhang Nuclear. According to the industrial and commercial data, the actual controllers of more than 30 medical inspection laboratories under the Nuclear Gene are all Zhang Hezhen, and Zhang Shanshan is the supervisor of more than 10 of them.

Since 2022, 16 medical laboratories have been opened for nuclear genes, 8 of which were established in October.

According to "Nuclear Gene Group" WeChat official account, in 1990, Zhang He was admitted to China Medical University and became the first batch of DNA identification graduate students in China. After graduation, shenzhen public introduced high-tech talents to shenzhen public to organize the earliest DNA identification center in China. 

After leaving the Public Security Bureau, he started his own business and set up Shenzhen Hongshi Villa Decoration Company. In 2012, Shenzhen Nuclear Gene Technology Co., Ltd. was established. In 2013, Zhang Nuclear established Guangdong Huaxi Forensic Material Evidence Judicial Appraisal Institute, and established the first laboratory with the qualification of judicial appraisal license.

Zhang Hezhen once said: "There are many companies doing genetic testing now, but there are actually only two types of companies in the market today, 3% are reliable, 97% are unreliable, and I only do 3%."

02 The track is "overcrowded" and accounts receivable have increased substantially.

An epidemic situation made the subdivision track of nucleic acid detection instantly become a crowded "square", and the detection level became uneven under the crowd.

According to the incomplete statistics of People’s Daily Health Client, at least 10 nucleic acid detection institutions in 7 places have been put on file for investigation, notification or punishment this year, involving Beijing, Hefei, Anhui, Shijiazhuang, Hebei, Xuchang, Henan, Hohhot, Inner Mongolia, Kunming, Yunnan and Lanzhou, Gansu.

Since June this year, documents have been issued continuously at the national level to strengthen the supervision of nucleic acid detection and ensure the accuracy of test results. On June 2, the State Council Joint Prevention and Control Mechanism issued the Notice on Further Strengthening the Whole Chain Supervision of Nucleic Acid Testing in Covid-19, which will strictly manage the qualifications of testing institutions and personnel, standardize the management of sample collection, preservation and transshipment, strengthen the daily supervision and management of nucleic acid testing institutions, strengthen the supervision of nucleic acid testing institutions in emergency and other aspects, and directly revoke the Practice License of Medical Institutions by setting up a "traffic light" for the entry and exit mechanism of nucleic acid testing institutions.

On June 7th, National Medical Products Administration issued a notice to further strengthen the quality and safety supervision of detection reagent products in Covid-19 to ensure product quality and safety and effectively serve the overall situation of epidemic prevention and control.

The sudden "expansion" of the track stems from the attraction of huge demand.

Since 2020, as an important member to undertake the task of nucleic acid detection, the status of third-party medical testing institutions has greatly jumped, and the industry has undergone earth-shaking changes.

According to the statistics of orient securities, the market scale of nucleic acid detection in China will reach 13.2 billion yuan in 2021, with a year-on-year increase of +9.1%. According to the forecast of CBinsights, the market scale is expected to reach 14.6 billion yuan in 2022, showing a rapid growth trend. According to the data of enterprise investigation, there are 1702 enterprises related to medical testing in China, including about 145 new enterprises related to medical testing this year, and the investment of enterprises continues to increase.

Taking the head enterprise as an example, in the first three quarters of 2022, Dean Diagnostics realized revenue of 15.63 billion yuan, a year-on-year increase of 67.37%; The net profit of returning to the mother was 2.428 billion yuan, a year-on-year increase of 96.94%. The substantial increase in performance is mainly due to the growth of inspection business.

The data shows that the diagnostic service business grew rapidly, with revenue of 9.875 billion yuan, up 117% year-on-year, and revenue excluding COVID-19 business was 3.485 billion yuan, up 20% year-on-year. It can be seen that COVID-19’s business growth is obviously faster than that of regular business, which is an important driving factor for revenue growth.

Compared with 2019, the annual revenue of Dean Diagnostics was 8.453 billion yuan, and the net profit returned to the mother was 347 million yuan. After the epidemic "Black Swan" flew in, the figures on Dean’s report card of diagnostic profit have multiplied several times on the basis of a larger base.

Another leading enterprise, Jinyu Medicine, also achieved a large performance growth this year. In the first three quarters of 2022, the operating income of Jinyu Medical was 12.208 billion yuan, a year-on-year increase of 41.67%; The net profit of returning to the mother was 2.448 billion yuan, a year-on-year increase of 46.41%. The increasing demand for laboratory tests is also the main reason for the rapid growth of Jinyu medical business.

But behind the 10 billion revenue, the real data is not as optimistic as it seems.

Relevant performance reports show that as of the end of September this year, Dean’s diagnosed accounts receivable rose to 10.754 billion yuan, a year-on-year increase of 71.02%. The accounts receivable of Jinyu Medical also reached 7.433 billion yuan, accounting for 60% of the revenue in the same period.

From the perspective of accounts receivable accounting for total assets, in 2019, Dean diagnosed that accounts receivable accounted for 30.98% of total assets, and in the first half of 2022, accounts receivable accounted for 51.15% of total assets.

It has been observed that the sharp increase of accounts receivable widely exists in enterprises that operate COVID-19 detection related reagents and provide nucleic acid detection services.

Many enterprises responded that the status quo of accounts receivable basically matched the characteristics of business model and the growth of income scale. Because accounts receivable mainly came from medical institutions and the government, the risk of bad debts was low and the overall risk of bad debts was controllable. However, there are also media reports that some enterprises are under greater pressure to pay back the money, and a few small enterprises have greater cash flow risks.

In addition to the income from testing in COVID-19, the routine business of head enterprises has also achieved a certain degree of growth in the past two years. In the first half of 2022, the revenue from the diagnosis service business excluding COVID-19 business of Dean Diagnostics was 4.014 billion yuan, an increase of 31.97% compared with the same period of last year and 37.69% compared with the same period of 2019.

However, it is an obvious fact that the original conventional market for nucleic acid detection cannot bear such a large scale of business. When it returns to normal, the existing market scale will shrink sharply, and the huge production capacity and personnel blindly expanded due to the epidemic will be difficult to digest and absorb.

Once the lucrative scenery is unsustainable, how to "land" is the biggest problem facing these enterprises.

- END –

The 7.8-point "Tang Dynasty Mysteries Record" has just ended, and a new story is coming!


Special feature of 1905 film network Finally, I directed the drama series and exposed the second preview. More than that, all the participants appeared.



In the preview, Jin Yucheng, the original author, made a surprise appearance, and even brought out the first sentence at the beginning of the novel, "It is best to go to a tall building alone at night".Various actors appeared one after another, and Wu Nong brought people back to Shanghai in 1992 under the soft atmosphere.



It’s just that the series is still being filmed, and the official has not disclosed more information about the movie version promised by Wong Kar-wai. Just for many fans, I hope to visualize the novel Blossoms Shanghai as soon as possible.


Although the development progress of films and dramas is slow, Blossoms Shanghai’s stage plays have already toured for many rounds, and they are performed in pure Shanghai dialect, so that many viewers can get into that story in seconds.



Nowadays, while an IP is being filmed, it also takes into account stage creation.If Blossoms Shanghai’s film and television and stage are the creations of two companies, then the recent online drama.Records of Mysteries in the Tang DynastyIt will soon be extended to the stage by the producers behind it, and the musical Datura of the Tang Dynasty will be staged.



Nowadays, more and more IP have started stage creation after film and television. In an interview recently, it was revealed that the stage play rehearsal is currently underway.What is the connection between the two-way complementarity of film and television and the stage?


More than "Records of Mysteries in Tang Dynasty"


From the current point of view, "Tang Dynasty Mysteries Record" is brewing a "Tang Dynasty Mystery Universe". According to the interviews of the screenwriter and director, there were 9 cases originally planned for the first season of "Tang Dynasty Mysteries Record", but in the end, "hell change" has not yet appeared. So far, this story is the second case in the second season.



In the concept of "Tang mysterious universe", the story happened in the prosperous Tang Dynasty, spanning from the late Wu Zetian to the late Tianbao. All kinds of stories are presented through different artistic forms. At present, apart from the drama series "Tang Dynasty Mysteries", there are also derivative short plays "Su Wuming from Datang" and musical "Datura of Tang Dynasty Mysteries".



When the series was broadcast hot, the musical was officially announced and its first performance was held on November 11th. Compared with many other stage works adapted from film and television works in the past, the cycle seems to be much faster. But in fact, musicals have been promoted since the creation of "Tang Mysterious Universe".


It is understood that the musical Datura of the Tang Dynasty was originally planned to be staged in April this year, but as the series went online, the performance time was pushed back and forth in order to cooperate with each other.



The story of the musical continues the world view of the series, but the story is independent. It is understood that the story tells the story of a case that happened ten years ago, and continues to the story of revenge in the inn ten years later. Among the ten characters, except the protagonists Su Wuming and Lu Lingfeng, the other eight people have their own ghosts.



Musical creation and drama are the same company, but it is not finished by drama writer Wei Fenghua. Whether the musical can continue the high reputation of the series of 7.8 points still needs to wait until the official performance to know.


Ma Da, the director of the musical Datura of the Tang Dynasty, is the creator of the musical Eternal Life of the Soul Ferry, a derivative of the online drama IP Ferry.


It can be seen from the audience’s feedback on the stage of "The Immortality of the Soul Ferry" that the thin plot is the key to being criticized. However, the creative team also revealed in the interview that compared with the creation of film and television works, time and space can be continuously developed through multi-line development, but the stage creation is inevitably affected by time and space in plot design, and there will be a relatively thin possibility.



In addition to the above-mentioned cross-media creation of two IPS, there are not a few such forms of creation recently.In the past two years, The Awakeing Age and Minning Town, which have attracted much attention, have met the audience again in the form of stage creation.


Minning Town chose to present it in the form of national opera, and the adaptation process was not easy.It is difficult for drama series to conform to the expression of stage art in terms of drama conflict. Especially in creation, "water", "electricity" and "planting"mushroom"Three events are the core ideas of drama, but the performance of the stage will inevitably weaken the corresponding dramatic expression.



Opera Minning Town almost gave up the expression of the plot of "water use" and used the advantages of the stage to mix the plots. At the same time, the characters have been abandoned to some extent, and the expression of more group images in the drama is concentrated on Debao and Mai Miao.


The Awakeing Age, a stage play, is based on a TV series of the same name, but it is not just a condensed version of the series.



It is reported that The Awakeing Age combined the real historical background with the works and biographies of historical figures to simplify the characters.After all, there is room for 30 episodes or even 40 episodes, but for stage plays, the duration is usually about 3 hours, so it is difficult to cover all the contents.


It is normal to adapt film and television dramas.


The case of film and television drama adaptation of drama is not just recent.


In 2013, the director of the TV series "Da Zhai Men" moved from a small screen to a big stage, taking "Bai Jingqi and his three women" as the main story, and reduced the TV series to a three-hour drama. Besides, Legend of Wulin, Hidden, Let Bullets Fly, Soldiers Assault, etc. have all become classic plays.



Undeniably, compared with the original plays of "star" drama directors, many dramas still have certain barriers in market appeal. The adaptation of these film and television works by drama itself has provided the first wave of appeal for these stage works.


This kind of "interaction" is not just a bottoming out of the drama market, but an expansion. The expansion of IP can also attract audiences who have feelings for film and television works, and feel the charm of the story through different forms of carriers.



However, this adaptation is by no means a pure "takenism", but also a constant polishing on the stage, in order to truly stand on the classics.


The drama "Legend of Wulin" toured the whole country, not only in the main audience cities such as Beishangguang, but also in other second-and third-tier cities. Even this IP blessing with a high degree of nationality, the attendance rate in many cities is still not optimistic.



In addition to this adaptation, with the expansion of pan-entertainment creation, the concept of "film and television universe" has been deeply rooted in people’s hearts, and there have also been many series of creations such as Datura recorded in the Tang Dynasty and Eternal Life of the Soul Ferry. These stories maintain independent expression, and at the same time strengthen the exploration of the depth and breadth of the entire IP universe.


Two-way trip to film and television and stage


With the increasing investment of consumers in entertainment in recent years, more and more drama brands are out of business, especially "Mahua FunAge". Their appearance has realized the further "two-way rush" of drama and film and television works.


In the past, people often saw movies adapted from dramas, such as Thunderstorm, which was created.



In recent years, this kind of adaptation has become more and more rampant in film creation. Apart from the works such as "Mahua FunAge", the creative inspiration of the first two films comes from stage art without exception.



Besides, The Life and Survival of Gorgeous Office Workers, starring directors, screenwriters, and others, was staged in Hongkong, China in 2008. After Zhang Aijia performed for one and a half years, he felt the rhythm of this work, which is very suitable to appear as a musical film.


So, she found the director, and personally manipulated the script, co-starred with others, and created a film. Zhang Aijia once admitted in an interview that the original stage play was three hours, with 13 characters, and the length of the film must be shortened, and the main characters should be reduced, and the cass is also different. As a result, she almost re-created the script.



In addition to the film, the TV series has already been filmed, but it has not been broadcast.


Just for the current creation, the interaction between the two is two-way, but it is undeniable that the problem of media carrier makes the creation need to be more "tailored to the content". After all, no matter which creation comes first, the latter is not simply copying and pasting, and more importantly, it highlights its essence.


In the eyes of the audience, whether it is stage works or film and television works, more media carriers can well expand the public’s life and entertainment, and at the same time have a deeper understanding of the works.


Huawei Zunjie advertises by Maibakh! Do you dare to buy a luxury car because it is so economical?

Zhiyi Automobile/Zhengqi

As a representative of the impact of domestic new energy vehicles on millions of luxury cars, its release has undoubtedly attracted a lot of attention. However, while the Zunjie S800 conference formed a hot public opinion, the controversy caused by the borrowing of its promotional film from Maibakh has become a hot spot of concern recently.

1. The owner of the car sent a video and tore it. Compared with Maibakh, it was rented.

In the Zunjie S800 promo jointly created by JAC and Huawei, Maibakh’s top model S680 and Zunjie S800 were compared and tested in snow climbing, curves and puddles.

It seems that the stability of Maibakh S680 is not as good as that of Zunjie S800 in the scenes of rapid turning, climbing and passing through puddles. Moreover, in these scenes, the Maibakh S680 also encountered the situation that the snow was out of control and deviated from the runway, and the wheel hub was in close contact with the puddle, which might damage the car body.

However, it stands to reason that the company shooting these scenes should have already bought insurance and used Maibakh’s own vehicles. But the fact is that the owner of this car doesn’t seem to know that his car was used to shoot advertisements.

On February 24th, the broadcaster of a certain platform released a video, claiming that his Maibakh S680 was taken by Zunjie officials for a violent driving test "unwittingly". And there are many damages in the hub, front cooling net and bumper of the vehicle.

Moreover, the broadcaster said that these damages had been found when the car was towed back on January 21, and the respected officials have not given him an explanation until now.

So is the marketing team of Zunjie so despicable?

2. Layers of outsourcing make a disaster, and the car rental company or the back pot.

On the surface, Zunjie officials responded shortly after the Maibakh car owner released this video, saying that the Maibakh S680 used for the test video of the conference was obtained through a third-party rental and loan platform, and the purpose was made clear to the other party in advance.

However, it can be seen from the videos released by this Maibakh car owner before that this Maibakh S680 seems to be a car under his personal name and does not belong to a car rental agency. So, is the venerable official telling a lie?

However, judging from the characteristics of the car rental industry, the Zunjie official is probably not telling lies. Rent-a-car companies often don’t have to use their existing cars for their customers when looking for a source. Instead, find the owner of the car with customer demand through the relationship, pay the rent to the owner, and then give the car to the user who needs the car to earn a middleman’s money.

However, in this process, the first-level relationship often can’t find a suitable car source, so it often appears that Party A’s car rental company finds Party B, and Party B entrusts Party C to find a car, and Party C finds the car source in E’s hand through the relationship. In this process of entrustment, customers’ initial exhortations are often forgotten in layers of entrustment.

Therefore, it is very likely that the owner lent his car to a friend who is connected with the car rental industry. At the beginning, the car rental agency that Zunjie officially found was likely to find the owner after several layers of relationships, so the "clear use" of Zunjie officially may have been forgotten by the client.

However, it seems that the official responsibility of the respected world has been "picked up clearly", but the tricks in the test in the video of the conference have attracted many people’s attention.

3. The test video "Let go of the valve" shows that the marketing atmosphere of Zunjie has been broken.

In the test video, Maibakh may have scratches and some bumps in scenes such as out-of-control corners and puddles. However, it is reasonable to say that these bumps have no particularly strong impact. However, from the video released by the owner of Maibakh, it can be seen that the hub of his Maibakh S680 has obvious depression.

So some netizens speculated that Zunjie’s shooting team deflated the tires of Maibakh S680 before the test. As a result, in comparison with Zunjie, Maibakh’s performance on the bumpy road was greatly reduced. At the same time, because the tire is flat, the wheel hub is sunken when it is impacted by the concave-convex road surface.

Regardless of whether these netizens’ guesses are reasonable or not, the high-end feeling originally created by Zunjie S800 has been affected by the voices of these controversial videos and online discussions.

The time when Maibakh S680 owner released the video was also very "scheming". He didn’t make a sound the first time he got the car on January 21st, nor did he release the video on the day of Zunjie S800 conference. Instead, he released the video after the video popularity of the conference was brewing on the Internet for some time.

Moreover, this Maibakh car owner is not a simple internet amateur, and his video posting account already has 200,000 fans. This can’t help but make people doubt that this owner is rubbing traffic. However, regardless of its motivation, a part of the high-end sense built by Zunjie S800 through marketing has been distorted by online disputes.

In short, the online public opinion of Zunjie S800 is still fermenting. As for whether Jianghuai Automobile and Huawei can bring public opinion to their own advantage, we still need to continue to observe.

The original article of Zhiyou Automobile, please contact us if you need to reprint it.

* The picture is from the Internet. If it is infringing, please contact the author to delete it. *

AITO asks M7, an "all-around vehicle" that satisfies perfectionists.

"An idealist who is unconstrained and unconstrained, a painter who hopes to live in a fantasy land." Miss Ni, the owner of M7, described herself like this. "Choosing a car is difficult for a girl, not to mention that I am a perfectionist." As everyone knows, a person who is uninhibited and uninhibited when painting, in the face of real life problems, is difficult to choose.

 

 

In the middle of the year, the goddess of luck came to Miss Ni. Being in a first-tier city, she was happy to get the car purchase index, and fell into ecstasy after learning the news. But soon, Miss Ni was entangled again. "I want to buy a car that is perfect in all aspects, but I am afraid of disappointment. Being a perfectionist is too tired! " She vomited.

 

Bound mseven"Pentathlon" in the eyes of perfectionists

 

After a period of investigation and comparison, Miss Ni finally chose the M7 as her new car. Friends have expressed their incomprehension. Why did a little girl choose such a big 6-seat SUV? In the interview, Miss Ni told us the reasons for her decision to buy a new car with the confession of "perfectionist".

 

 

"For a car, my request is quite a lot. First of all, the space is big enough, and the car makes me feel insecure; Then there is that intelligent technology must be in place, and the configuration should be rich enough and intimate enough; Yan value and aesthetic online, this is also a must; There is also the hope of saving fuel. Now that the oil price is so high, it is better to take a taxi if you don’t save fuel! " In the eyes of a perfectionist like Miss Ni, even if she has a thousand choices, she must find the car that best matches her needs.

 

Fortunately, she still found M7 who meets the perfect standard of pentathlon.

 

"Large space represents security"

 

Regarding friends’ questions, Miss Ni has a unique and interesting point of view: "I hope the car can be bigger, not because I am greedy for more space, but because of a ‘ Big guy ’ Not only can it hold my little universe, but it also makes me feel safe ‘ Protection force field ’ 。”

 

 

Wenjie M7 has six large spaces with a body size of 5020x1945x1775mm and a wheelbase of 2820mm, and its longitudinal distance is superior to its peers. In addition, Wenjie M7 is equipped with the industry’s first commercial AITO zero-gravity seat, which opens the zero-pressure suspension with one button and ergonomically creates a first-class comfortable ride experience.

 

 

"In the uninspired night, go to a place where there is no one with your car and bid farewell to external disturbances. Lying in the chair, looking at the stars and the moon through the skylight, imagining the story between them, being unconstrained and isolated, and feeling safe. " Miss Ni shared it, and her eyes sparkled.

 

"Strong intelligence represents imagination"

 

In Miss Ni’s view, imagination is a gift from the world, which originates from the connection between people and the world. "The more nodes you connect, the more imagination you can get. Not only the connection with people, animals, music and history is the source of my imagination. Just like smart devices, asking the wisdom of M7 is even a better choice than imagination. "

 

 

The M7 is equipped with the HarmonyOS intelligent cockpit, which can provide car owners with an unimaginable intelligent travel experience anytime and anywhere. Super desktop, realizing seamless transfer of multiple devices to the car, and mobile applications can get on the bus at any time; Intelligent voice interaction, which can be said visually, has more intelligent reminding function to create a top-level interactive experience; The intelligent scene from HarmonyOS makes the interior environment more comfortable and the car machine knows the owner’s mind better.

 

"Multiple configurations represent vitality"

 

"At the peak of my creation, I want to get more and create more every day, and tossing is essential. Youth and vitality have nothing to do with age, but are determined by mentality. Although the environment and platform will decide a lot, whether it is there or not and whether it is wanted or not are two different things. There are more choices in life and more cars. I believe no one will refuse, but that is the vitality! "

 

 

The vitality of Miss Ni’s mouth is displayed in the rich configuration on the M7. Front seats come standard with seat massage and ventilation heating; Dual 40W wireless fast charging makes the mobile phone full of power at all times; Unit 19 HUAWEI SOUND sound system, luxury mobile concert hall; Studio-class soft light queen mirror, with soft light, can easily create beautiful makeup; 128-color ambient light and 3-slot fragrance system add more colors to life. Haopei is standard, and the world M7 builds an all-round technology cockpit with vitality.

 

"High face value represents creativity"

 

For almost all girls, Yan value is definitely the highest weight in the process of car selection, and so is Miss Ni. But her judgment on car design is not limited to face value. "High face value is not only important, but also the source of my creativity. If it is a conservative car, it will make me feel boring. But if it is too angular, it will make me feel that creativity is bound. "

 

 

The M7 continues the ultimate, simple and pure design concept of the series of models. The visual appearance is luxurious, calm and extremely symmetrical, and the interior design style is people-oriented and experience first. Through exquisite design techniques, the M7 combines attractive classic symbols with luxurious body elements to create a high-value luxury smart car that is more suitable for modern people’s aesthetics, so that more consumers can take the car as the origin and stimulate the creativity of their beautiful peers.

 

"Low energy consumption represents execution"

 

Because she got the fuel vehicle index, Miss Ni didn’t consider the pure electric vehicle, and she didn’t want those uncontrollable and constrained conditions. The extended-range hybrid of M7 is different from traditional energy sources, which not only has long battery life, but also has low fuel consumption. The unique characteristics of the world give her a sense of deja vu and old friends.

 

 

Thanks to the intelligent platform of pure electric drive, Wenjie M7 can provide Miss Ni with a comprehensive battery life of 1,220 kilometers for a tank of oil, a four-second acceleration of 100 kilometers and a fuel consumption as low as 5.8L. Based on the excellent chassis and suspension adjustment, the driving quality of the M7 is both maneuverable and comfortable. With 6 driving modes and 3 energy consumption modes, this freedom-loving girl can enjoy more driving pleasure at lower travel cost.

 

 

"Quiet and powerful, I appreciate the character of being able to work hard in a place that others can’t see, with execution but not exposed." Miss Ni commented on the new car like this.

 

In Miss Ni’s eyes, the M7 is an "all-round model" that makes perfectionists satisfied. She smiled and said, "I know there must be a perfect product in the world, but the process of finding it is always difficult and painful." Fortunately, I didn’t give up my initial intention and standards, which is another inspiration that I chose to ask M7. "

The Yangtze River has been closed to fishing for ten years, and these changes are related to you and me.

  On February 15, 2021, the ship sailed in the waters of the Three Gorges of the Yangtze River. Recently, all kinds of mountain flowers on both sides of the Three Gorges of the Yangtze River have opened, and the spring is getting stronger. Xinhua news agency

  Red-billed gull living in the area of Jijiang Yangtze River Bridge in jiangjin district, Chongqing, Xinhua News Agency issued.

  Hukou, Jiujiang City, Jiangxi Province assisted the patrol team in patrolling Poyang Lake. Our reporter Zhou Mengshuang photo/bright picture

  [Ecological topic]

  "The Yangtze River has a long history and a vast water surface. It is a good water town for freshwater fish to have children and grow up." The documentary "story of the yangtze river" filmed by CCTV in 1983 praised the mother river in this way. However, in recent decades, due to the comprehensive influence of various human activities, the ecological environment in the Yangtze River basin has deteriorated sharply, and the biological integrity index has reached the worst "no fish" level.

  In order to save the aquatic biodiversity of the Yangtze River, on January 1, 2021, the main stream of the Yangtze River, large Tongjiang lakes and important tributaries officially began a 10-year comprehensive fishing ban. 111,000 fishing boats and 231,000 fishermen retreated ashore, which began the historical turning point of "people returning fish to enter". The "No.1 Document of the Central Committee" in 2021 released a few days ago clearly proposed to strengthen the conservation of aquatic biological resources, promote the capacity building of fishery law enforcement focusing on the Yangtze River, ensure the effective implementation of the 10-year fishing ban, and do a good job in ensuring the resettlement of retired fishermen. According to the strategic plan of the CPC Central Committee on the high-quality development of the Yangtze River Economic Belt, from March 1, China’s first special law on river basin protection — — The Yangtze River Protection Law will also be officially implemented.

  Recently, Guangming Daily Weibo launched an online survey on "What are you most concerned about when the Yangtze River is closed for ten years". Based on the results of the previous survey, with some questions that netizens are most concerned about, our reporter interviewed relevant experts, heads of competent departments and volunteer representatives.

  Will our table be affected after the ban on fishing?

  In Huaiyang Restaurant, Yangtze shad is a famous dish, which is regarded as a delicacy by many diners because of its tender meat.

  "Now that the Yangtze River is completely banned from fishing, is this signature dish gone?" Many people have doubts about this.

  "This kind of worry is a bit redundant, because the Yangtze River shad has been extinct for almost 30 years." Zhou Zhuocheng, an expert from China Fishery Association, explained that the Yangtze River shad is a migratory fish. In 1975, the catch reached 1,570 tons, but since the 1980s, its number has dropped rapidly, and it has been impossible to form a fish season. After the 1990s, there is no record of catching it, which is equivalent to functional extinction.

  So, what has been sold in restaurants? "Yangtze river shad is ‘ Sanxian of Yangtze River ’ First of all, in order to maintain profits, merchants actually use close relatives such as American shad and Southeast Asian clouded shad. " Zhou Zhuocheng said that with the decline of aquatic biological resources in the Yangtze River, it is very common to confuse the real with the fake.

  The fate of the Yangtze River shad is not a case. According to statistics, the annual natural catch in the Yangtze River basin has dropped from 427,000 tons in 1954 to less than 100,000 tons in recent years. Even the common "four big fish" such as herring, grass carp, silver carp and bighead carp, their seedling production has dropped from 129.1 billion in 1965 to more than one billion today.

  "In contrast to the decline of fishery resources in the Yangtze River, since the 1950s, ‘ Four big fish ’ Artificial reproduction has been successful one after another, and the freshwater aquaculture industry has developed rapidly, and the table of ordinary people has not been affected. " Cao Wenxuan, a scientist who initiated the ten-year ban on fishing in the Yangtze River and an academician of the China Academy of Sciences, said that from 2016 to 2019, the output of freshwater aquaculture in China was around 30 million tons, with an annual output of about 5 million tons of grass carp, 4 million tons of silver carp and nearly 3 million tons of bighead carp, providing consumers with delicious dishes such as "boiled fish" and "chopped pepper fish head" — — "The annual per capita consumption of China’s 1.4 billion population ‘ Four big fish ’ 9.4 kilograms. "

  Cheap and high-quality farmed fish can’t be separated from wild fish.

  Cao Wenxuan introduced that the artificially cultured fish in fish ponds are often the descendants of several pairs of parent fish. After long-term inbreeding, the genes will degenerate and get sick easily. Therefore, it is necessary to have wild fish to improve their germplasm resources, so that the cultured fish can grow fast and grow well. "To make people eat fish and eat better fish for a longer period of time, we must protect the natural germplasm resource pool of the Yangtze River." Cao Wenxuan stressed.

  "I don’t eat fish. Does it matter to me to protect the Yangtze River fish?" Some netizens hold this attitude. In fact, protecting the fish in the Yangtze River is not only related to the dining table, but also related to the drinking water safety of hundreds of millions of people.

  "Biodiversity is complete, and the service function of the ecosystem can be brought into play. One of the most important service functions of the Yangtze River ecosystem is to purify water quality. " Taking the development model of "controlling water with fish" in Qiandao Lake as an example, Cao Wenxuan explained that "plankton such as algae in the lake can absorb nitrogen, phosphorus and other substances in the water body, and then artificially put a certain amount of silver carp and bighead carp to eat these plankton, so that when it enters, it is three types of water, and when it flows out, it becomes one type of water."

  "I have been calling on my friends to stop eating wild fish and let the Yangtze River catch its breath. Moreover, wild fish will enrich some toxic and harmful substances in the natural environment, but the safety is not as good as that of farmed fish. " Zhou Zhuocheng, a popular science "big V" with more than 6 million fans in Weibo, said.

  What about the livelihood of fishermen after landing?

  In the past few years, in order to promote the ten-year fishing ban, Ma Yi, director of the Yangtze River Basin Fishery Supervision and Management Office of the Ministry of Agriculture and Rural Affairs, has been running around the Yangtze River for a long time.

  “大家可能不知道,我曾是最先反对十年禁渔的人。”马毅笑着告诉记者,2006年,曹文宣院士写信向原农业部建议十年禁渔后,他第一时间登门拜访,向曹院士解释情况、做工作。

  “一是渔民退下来怎么办?我们现在建档立卡的渔民是23.1万人,但当时的渔民人数远不止这个数字,他们上岸之后的安置很成问题。二是这么大的江面,当时渔政执法机关的力量很薄弱,根本管不住。”那时候,在马毅看来,十年禁渔虽然很有必要,但条件还不成熟,人们的观念也普遍跟不上。

  “党的十八大以来,长江的生态保护迎来了转折。随着许多重要举措落实落地,实施长江十年禁渔的物质基础和认识基础也越来越完备。”马毅感慨道。

  2016年1月,习近平总书记在重庆召开的推动长江经济带发展座谈会上为长江治理开出了治本良方,提出要“共抓大保护、不搞大开发”;2017年,“中央一号文件”提出“率先在长江流域水生生物保护区实现全面禁捕”;2018年,“中央一号文件”提出“建立长江流域重点水域禁捕补偿制度”;2019年,长江流域的332个水生生物保护区退捕;2021年1月1日,十年禁渔终成现实。

  In order to ensure the livelihood of retired fishermen, as of January 31, 2021, 25.167 billion yuan of compensation funds for no-catching and no-catching have been fully put in place; In key waters, 129,743 people have changed jobs (accounting for 99.76% of the base number), 171,626 people have been provided with social security, and the task of social security for fishermen who have retired has been fully completed.

  In Cao Wenxuan’s view, the ten-year ban on fishing is not only to protect fish, but also to help fishermen change their production and lifestyle. "The Yangtze River ‘ No fish ’ The image is that fishermen can’t catch fish with legal large mesh nets, so they have to use ‘ Juehu. com ’ 、‘ Labyrinth ’ Illegal means such as electric fish can catch a little fish. In this way, the Yangtze River fishing industry is like entering ‘ Dead end ’ 。”

  Song Bin is a native of Jiangbei District, Chongqing. For more than ten years, he has been fishing and managing catering boats on the river. With the increasing number of catering boats, Song Bin feels that the Yangtze River has changed. "Disposable tableware floats on the river from time to time, and the fish is not only caught less and less, but also with a ‘ Diesel oil ’ Taste. "

  In 2018, in response to the call of the government, Song Bin took the lead in dismantling the catering boat and opened an old Songjia fish restaurant not far from the shore with compensation. Nowadays, the business of the fish house is not only booming, but also four retired fishermen like Song Bin have joined the fish house and lived a stable life on the shore.

  After the Yangtze River was completely closed to fishing, a group of fishermen still chose to stay on the river.

  On February 5, 2021, at dawn, on the surface of Poyang Lake in Hukou County, Jiangxi Province, accompanied by the "sudden" motor sound, Shu Yinan and his colleagues began a day’s work, while monitoring the number of Yangtze finless porpoises, while discouraging anglers from using "four anchor hooks" on the shore. "This ‘ Four anchor hooks ’ There are four sharp hook tips, which can directly hook through the body of big fish without biting the bait, which is very destructive to fishery resources. " Shu Yinan told reporters.

  In 2017, Shu Yinan, who was born on a fishing boat and caught fish for more than 40 years, put away his fishing net and signed up for the newly formed Hukou Assistance Patrol Team. "In the past few decades, I have seen that the Yangtze River shad and other fish are gone, and the fish caught are getting smaller and smaller. If there are no fish in the future, where will there be fishermen? "

  As the "ecstasy" in Poyang Lake was cleaned up, the electric fishermen were punished by law, and Shu Yinan saw the gratifying changes in the Yangtze River. "I patrolled 20 kilometers this morning and saw finless porpoises jump out of the water more than a dozen times. They didn’t dare to dock so close before. When I came back from my patrol at noon, I saw ‘ The Yangtze finless porpoise was promoted to the national first-class protected animal ’ The news. Great, the future of the Yangtze River will definitely be better! " Shu Yinan was very excited.

  Ten years later, will the Yangtze River regain its former vitality?

  During the investigation, some netizens also asked: "To what extent can the Yangtze River recover after ten years of fishing ban?" "Will the number of fish exceed the natural carrying capacity?"

  "If the Yangtze River ‘ Sick ’ If so, then the ten-year fishing ban can only be said to be a visit to the mother river ‘ Rescue ’ 。” Cao Wenxuan pointed out that the 10-year ban on fishing is only a small step in the great protection of the Yangtze River. "This is not once and for all, and there is still a long way to go to save the aquatic life of the Yangtze River."

  Cao Wenxuan estimated that after ten years of rest and recuperation, the spawning capacity of the "four major fishes" in the Yangtze River could rise to about 20 billion to 30 billion, reaching the level of 30% in the 1960s at most, while the recovery of many endangered species was more difficult.

  Wei Qiwei, a researcher at the Yangtze River Fisheries Research Institute of the Chinese Academy of Fishery Sciences, said that in the investigation of fishery resources and environment in the Yangtze River from 2017 to 2019, they found that 130 species of historically distributed fish failed to collect samples — — What’s more, rare fish such as Chinese sturgeon, Yangtze sturgeon, mullet, and Hucho taiwanese have not naturally propagated.

  "The Yangtze shad disappeared so fast that we didn’t have time to conquer the artificial propagation method; In addition, the baiji and the white sturgeon have also declared functional extinction. " Wei Qiwei believes that after ten years, the biological resources of the Yangtze River will be improved and the vitality of the ecosystem will be revived, but some species may leave us forever.

  "Fishing ban has guaranteed the survival rate of Chinese sturgeon larvae released artificially, but due to physical changes such as blocking rivers and building dams, the problem that Chinese sturgeon cannot lay eggs needs urgent scientific research. As a river-sea migratory fish, Chinese sturgeon lives in the ocean most of the time, and there are still gaps in this protection. " How to prevent the Chinese sturgeon from repeating the mistakes of the white sturgeon is a problem that Wei Qiwei has been thinking about — — Obviously, "the ban on fishing alone can’t save all the fish."

  While the population protection of Chinese sturgeon is still facing a severe test, the Yangtze finless porpoise, another flagship species of the Yangtze River, has good news.

  Dr. Qian Zhengyi, Deputy Secretary-General of the Yangtze River Ecological Protection Foundation, recalled that during his studies at the Institute of Aquatic Sciences of the Chinese Academy of Sciences, he dissected 60 or 70 dead finless porpoises, about half of which had empty stomachs or other symptoms of hunger. "They were hungry and couldn’t find fish to eat in the vast Yangtze River."

  With the orderly promotion of the ban on fishing in the Yangtze River in recent years, the images of Yangtze finless porpoises playing in Poyang Lake, Yichang, Zhenjiang, Nanjing and other river sections frequently appeared on hot search. "The total ban on fishing has reduced the risk of illegal fishing gear hurting finless porpoises, and their food sources have greatly increased. I believe that in the next few years, their population will be restored to some extent. " Qian zhengyi is very confident about this.

  After graduating from Ph.D. in 2017, Qian Zhengyi devoted himself to the protection of the Yangtze finless porpoise and joined the Yangtze River Ecological Protection Foundation. Under the guidance of the Yangtze River Office of the Ministry of Agriculture and Rural Affairs, the Foundation cooperated with the fishery administration department to jointly create an assisted patrol mode to attract demobilized fishermen to engage in patrol supervision. "Fishermen are most familiar with the Yangtze River and have the most affection for it. Let them from ‘ Fishing up ’ Become ‘ Fish protector ’ , which can not only meet the demand of changing production and jobs, but also give the Yangtze finless porpoise ‘ Exclusive bodyguard ’ 。” Qian Zhengyi said jokingly.

  It’s not just finless porpoises that have good news. Not long ago, researchers from the Yangtze River Fisheries Research Institute of the Chinese Academy of Fishery Sciences found a fish in Yichang section of the Yangtze River. Siniperca chuatsi was once an important economic fish in the Yangtze River basin. Due to overfishing, river and lake barriers and habitat degradation, Siniperca chuatsi disappeared in several historical distribution areas, and was listed as a provincial-level key protected aquatic wild animal in Hubei and Hunan.

  "After the squid disappeared for more than 20 years, one was found in 2017, and another was found in 2020 after a lapse of three years. The time interval between appearances was shortened, which marked the gradual recovery of the squid population." Wei Qiwei believes that with the continuous development of the ten-year fishing ban, the scale of common fish populations in the Yangtze River will increase significantly, and some threatened fish populations will also recover.

  (Reporter Zhou Mengshuang)

Leading high-quality development with scientific and technological innovation.

  Author: Dai Shuanping, professor and doctoral supervisor of School of Economics of Jilin University, and researcher of China State-owned Economic Research Center of Jilin University.

  The Central Economic Work Conference in 2023 emphasized: "We must take the promotion of Chinese modernization as the greatest politics, unite the overwhelming majority of the people under the unified leadership of the Party, focus on the central task of economic construction and the primary task of high-quality development, and turn the grand blueprint of Chinese modernization into a beautiful reality step by step." It is of great theoretical and practical significance to accurately understand the theoretical wisdom and practical requirements contained in it for building a socialist modern country in an all-round way and promoting the great rejuvenation of the Chinese nation with Chinese modernization.

  Promoting high-quality development is the primary task for China to move towards a moderately developed country. Leading the construction of modern industrial system with scientific and technological innovation is a realistic choice for China to promote new industrialization at present. The modern industrial system is the foundation of the new development pattern, the basic framework for promoting high-quality development and the core component of the modern economic system. Science and technology, education and talents are the strategic supporting forces to promote Chinese modernization. A new round of scientific and technological revolution with artificial intelligence as the core is entering an all-round expansion period and will profoundly change the future economic form. Therefore, exploring new industries, new models, new kinetic energy and developing new quality productivity is an important way for China to seize future development opportunities.

  Diversified layout, regional cooperation, green transformation and digital empowerment are the distinctive features of the current global industrial system and industrial chain supply chain reshaping. In 2023, the Central Economic Work Conference not only emphasized "improving the new national system", "vigorously promoting new industrialization" and "supporting key core technology research, new infrastructure, energy conservation, emission reduction and carbon reduction", but also proposed "building a number of strategic emerging industries such as bio-manufacturing, commercial aerospace and low-altitude economy, opening up new tracks for future industries such as quantum and life sciences, widely applying digital intelligence technology and green technology, and accelerating the transformation and upgrading of traditional industries". Ecological civilization construction and green low-carbon development also fully reflect the characteristics driven by technological innovation. "Green low-carbon supply chain", "realization mechanism of ecological product value", "new energy system" and "intensive recycling and efficient utilization of resources" are all closely related to the construction of modern industrial system.

  Modern industrial system and scientific and technological innovation are mutually conditional and mutually supportive. Scientific and technological innovation leads the construction of modern industrial system, and industrial development is the soil for continuous scientific and technological innovation. In some frontier science and technology fields, China is changing its role from "runner" to "runner" or even "leader". However, how to play a leading role in basic research and cutting-edge core technologies requires China to make major reforms and explorations in the national innovation system. To promote the close integration of scientific and technological innovation and the construction of modern industrial system, it is necessary to continuously promote the popularization and application of intelligent and green technologies in manufacturing industry, continuously optimize the business environment, continuously stimulate the vitality of innovative subjects, open up new scenes, new fields and new tracks for innovation, establish new ones and break old ones, and accelerate the construction of a modern economic system.

  Expand domestic demand consistent with high-quality development requirements. Modern economic system is a sustainable economic system driven by scientific and technological progress, with high efficiency in resource allocation and continuous upgrading of industrial structure and product quality. Effective internal demand is the fundamental guarantee for stabilizing the economic system. However, effective demand is not static. Demand should face the future, guide resource allocation, and promote industrial structure and product quality improvement. Therefore, tapping new consumption and other new consumption growth points that meet the needs of high-quality development and effectively support new industries, new models and new kinetic energy is the key work direction to expand domestic demand. At the same time, to form effective demand, it is necessary to enhance people’s consumption confidence and satisfaction. In 2023, the Central Economic Work Conference put forward corresponding measures to expand the effective demand of residents from the perspectives of implementing new development concepts and building a new development pattern. For example, "promoting urban-rural integration and coordinated regional development", "promoting new urbanization with county towns as an important carrier" and "building livable, resilient and smart cities" can all expand the total demand. Similarly, giving priority to people’s livelihood and employment has sent a strong signal to stabilize social expectations. Only by building a sound social security system can residents be willing to spend and dare to spend.

  Deepen reform in key areas and expand high-level opening up. Domestic reform and opening to the outside world are the most basic experience summary of China’s economic construction. The Central Economic Work Conference in 2023 highlighted two basic points of work: reform in key areas and high-level opening to the outside world. Fully activating the endogenous motivation and innovation vitality of various business entities is the basic foothold of deepening the reform in key areas, treating state-owned enterprises and private enterprises equally, promoting the development of small and medium-sized enterprises in a new direction of specialization, serving the new round of scientific and technological revolution and helping high-quality development. It is worth noting that the meeting proposed to plan a new round of fiscal and taxation system reform, which will be of great significance to building a modern economic system and establishing a risk prevention mechanism in key areas.

  High-level opening to the outside world pays attention to tapping new kinetic energy of foreign trade, and expands and consolidates the foundation and depth of international exchanges based on new economic development models, new kinetic energy and new industries. Focus on expanding intermediate trade, service trade, digital trade, cross-border e-commerce export, and promoting the opening up of the service market, which shows that China’s foreign trade pattern has undergone fundamental changes, and traditional raw materials and processing and manufacturing have not adapted to the requirements of China’s high-quality development. With the reshaping of the industrial chain value chain, Chinese enterprises have been deeply embedded in the global value chain, and the importance of intermediate trade is getting higher and higher, and the status of producer service trade and digital trade in the trading system is gradually improving. Meanwhile. The construction of such institutional systems as "high standard economic and trade rules", "cross-border flow of data", "market-oriented, rule-of-law and international first-class business environment" and "investing in China" should also meet the requirements of China’s new development pattern and high-quality development as soon as possible.

  Prevent and resolve risks in key areas. In 2023, the Central Economic Work Conference emphasized that "next year, we should persist in striving for progress while maintaining stability, promoting stability through progress, establishing first and then breaking", and put forward the working bottom line of "stabilizing expectations, growth and employment". The working idea of "stabilizing" is embodied in social stability, implementing a prudent monetary policy, maintaining the basic stability of RMB exchange rate at a reasonable level, stabilizing and expanding traditional consumption, ensuring the employment stability of key groups, and ensuring the supply and price stability of important livelihood commodities.

  "Striving for progress with stability, promoting stability with progress, establishing first and then breaking" embodies China’s new thinking in dealing with the relationship between reform and development, as well as new strategies to reduce the pain of reform and stabilize social mentality. What "stands" is not only the new quality productivity, but also the new economic governance mode. At present, the risks of real estate, local debts and small and medium-sized financial institutions are the three major risk areas. Based on this, this paper puts forward some concrete work ideas to prevent and resolve risks, such as "three major projects", "accelerating the construction of a new model of real estate development" and "a big economic province should really take the lead". These schemes are based on the premise of maintaining overall stability, setting buffer zones, gradually absorbing risks, and minimizing the possible negative impact of "breaking".

The sun will live a billion years less? It’s not just you and me.

  Can you imagine a world without the sun? Astronomers’ research shows that if there is no sun, the average surface temperature of the earth will drop to below-17.78 degrees Celsius in a week, and it will drop to-73.33 degrees Celsius in a year. Most plants will die in a few weeks, and then most life will disappear because of the disappearance of the sun, and everything will be dead.

  Now we know how important the sun is to us! However, something unfortunate happened. Recently, foreign scientists’ research on the metal abundance of the sun shows that we may overestimate the life of the sun by one billion years, and the sun may die one billion years earlier than we expected.

  Elemental abundance controls the sun’s life gate

  It is understood that scientists have previously deduced that the life of the sun is about 10 billion years based on the standard solar model that ignores the rotation effect, which is a theoretical value simulated by the stellar evolution program, not a real value. And this value only refers to the central hydrogen combustion life in the theory of star evolution.

  "This is not to say that the sun really can only exist for 10 billion years. The accurate statement should be called the main sequence life of the solar model. In theory, the sun will become a red giant in about 10 billion years, but it still exists and will emit more sunlight. " Associate Professor Yang Wuming from the Astronomy Department of Beijing Normal University told the Science and Technology Daily reporter.

  He said that there are many preconditions to get the theoretical value of 10 billion years, and it is necessary to assume the initial element abundance of the sun and the physical process inside the sun. The life of the solar model is different with different initial element abundances. Because it is impossible to really get the initial element abundance of the sun and determine its internal physical processes, the life of the sun and even other stars cannot be accurately estimated.

  Twenty years ago, astronomers’ direct and indirect measurements of the sun showed that the metal abundance of the sun was around 1.8%; However, the latest solar spectrum measurement shows that the metal abundance of the sun is only 1.3%, which is far lower than the previous measurement results, and correspondingly, the life of the sun will be reduced by 1 billion years.

  The so-called solar metal abundance is the general term for the abundance of solar elements except hydrogen and helium. This metal is different from what we usually call metals. Because the contents of hydrogen and helium in the sun account for the vast majority, astronomers call all the heavier elements in the sun "metals". Although the content of these metals is small, it affects the fate of the sun.

  Because the electrons of metal elements easily absorb photons, which hinders radiation, the higher the metal abundance of the sun or star, the higher the opacity. The opacity of the sun or star is closely related to its life, temperature, brightness and other properties. Sani Vaniotch, a physicist who studies solar metal abundance at Stockholm University in Sweden, said that a very small amount of metal is enough to completely change the behavior of a star, and metal abundance can basically tell you how the star will die.

  Influence of atmospheric model on solar lifetime estimation

  The solar spectral measurement used in the latest research usually means that astronomers get the spectral lines of all measurable elements such as hydrogen, carbon, nitrogen, oxygen and iron through solar spectral analysis, and then compare them with the spectral lines given by the solar atmospheric model. When the two are consistent, the abundance of elements such as hydrogen, carbon, nitrogen, oxygen and iron used in the atmospheric model is considered as the element abundance of the solar photosphere. "However, this method cannot obtain the relative abundance of inert gases such as helium, neon and argon. The abundance of helium on the surface of the sun can only be inferred by helioseismology. " Yang Wuming said.

  After the latest measurement results come out, many people are wondering: Why is there such a big difference between the solar metal abundance measured before and after?

  In this regard, Yang Wuming explained that the old solar metal abundance was derived from the one-dimensional atmospheric model of local thermal balance combined with the observed spectral lines; The new solar metal abundance is derived from the three-dimensional atmospheric model of non-local thermal balance combined with the observed spectral lines. The old one-dimensional atmospheric model is considered to ignore many physical factors. Some scientists think that the new atmospheric model is closer to the real situation, and it is the improvement of the atmospheric model and the update of the transition probability data of atoms and molecules that cause the difference in the abundance of old and new metal elements.

  In the evolution of stars, if other conditions remain unchanged, the decrease of metal abundance will lead to the energy generated by the central nuclear reaction radiating outward more easily. However, the energy tends to radiate outward, which will cause the star to contract more easily and increase the density and temperature of the center of the star. More importantly, the increase of density and temperature will accelerate the hydrogen combustion rate, which will lead to the shortening of the total time of central hydrogen combustion, that is, the main sequence life of the solar model will be shortened. However, if other conditions change, such as the increase of hydrogen abundance or the influence of the sun’s rotation on its evolution, then the aforementioned life reduction does not exist.

  So, how to verify which method is more correct in the future?

  In Yang Wuming’s view, the answer to this question lies in which metal abundance measurement is more accurate and whether the helioseismology inversion result is reliable. Only by giving the correct abundance of solar elements can we determine how long the life of the sun is. If we can give a new solar model of gold abundance consistent with the helioseismology inversion results, all related problems will be solved.

  Life geometry is related to the theory of stellar evolution.

  Chen Pengfei, a professor at the School of Astronomy and Space Science, Nanjing University, said that he was inclined to think that the initial life span of the sun was correct, and the life span of the sun would not be reduced by one billion years. "For several reasons, I prefer to think that the original model is correct: first, the measurement results of metal abundance in the solar wind by satellites support 1.8%; Secondly, the density of photosphere on the surface of the sun is high enough, so it is reasonable to adopt the approximation of local heat balance model in the past; Thirdly, the new model takes into account the inhomogeneity of the solar atmosphere, which is indeed an improvement, but it also ignores other factors, such as the influence of magnetic field; Fourth, to take a step back, even if the results of the new model are correct, because the distribution of metal abundance may be uneven, the metal abundance on the surface of the sun may be different from that inside. " Chen Pengfei said.

  At the same time, Yang Wuming also agrees that the initial solar life is correct. He said that the life of the sun has not been overestimated by 1 billion years, and that the life of the sun is overestimated because only the reduction of metal abundance is considered. When the influence of hydrogen abundance increase and rotation on the evolution of the sun is considered, the life of the sun will not be reduced.

  However, the astrophysicist Martin asp Lund of the Australian National University insists that the 1.3% solar metal abundance is correct. He said that all aspects of astronomy will be affected, and an accurate understanding of the evolution of stars has laid the foundation for almost everything.

  So, if astronomers do overestimate the life of the sun by one billion years, what theories need to be revised?

  In Yang Wuming’s view, if the life of the sun is really overestimated by 1 billion years, it shows that the theory of stellar evolution established by astronomers before is not complete, so they need to re-examine the theory and model of stellar evolution established before. For example, the standard theory of star evolution ignores the influence of star rotation, but in fact all stars are rotating. We have reached the time when we need to seriously consider the influence of rotation on the evolution of stars. Astronomical research on star clusters and galaxies depends on the theory of stellar evolution to a certain extent. If the theory of stellar evolution is wrong, the previous understanding of star clusters and galaxies needs to be adjusted.

Ministry of Industry and Information Technology: In March, the automobile production and sales decreased by 44.5% and 43.3% respectively.

  Beijing, April 14 (Xinhua) According to the website of the Ministry of Industry and Information Technology, the Ministry of Industry and Information Technology recently released the economic operation of the automobile industry in March 2020. The data shows that in March, the production and sales of automobiles were 1.422 million and 1.43 million respectively, down by 44.5% and 43.3% respectively. From January to March, the production and sales of automobiles were 3.474 million and 3.672 million respectively, down by 45.2% and 42.4% respectively.

  According to reports, in March, 2020, with the phased results of epidemic prevention and control in COVID-19, auto companies accelerated their resumption of work and production, production and operation resumed in an orderly manner, and the auto market gradually picked up, but the overall production and sales were still at a low level.

  Car sales in March decreased by 43.3% year-on-year.

  In March, the production and sales of automobiles were 1.422 million and 1.43 million respectively, down by 44.5% and 43.3% respectively.

  From January to March, the production and sales of automobiles were 3.474 million and 3.672 million respectively, down by 45.2% and 42.4% respectively.

Image source: website of Ministry of Industry and Information Technology

  — — In March, passenger car sales decreased by 48.4% year-on-year.

  In March, the production and sales of passenger cars were 1.049 million and 1.043 million respectively, down by 49.9% and 48.4% respectively. In terms of vehicle types, the production and sales of cars were 493,000 and 491,000 respectively, down by 50.3% and 48.6% respectively. The production and sales of SUVs were 498,000 and 485,000 respectively, down by 44.8% and 43.9% respectively. The production and sales of MPV were 35,000 and 46,000 respectively, down by 77.3% and 70% respectively. The production and sales of crossover passenger cars were 22,000 and 21,000 respectively, down by 48.6% and 58.2% respectively.

  From January to March, the production and sales of passenger cars were 2.684 million and 2.877 million respectively, down by 48.7% and 45.4% respectively. In terms of vehicle types, the production and sales of cars were 1.233 million and 1.325 million respectively, down by 50.4% and 47.6% respectively. The production and sales of SUVs were 1.288 million and 1.372 million respectively, down by 43.1% and 39.6% respectively. The production and sales of MPV were 114,000 and 136,000 respectively, down by 70.4% and 63.3% respectively. The production and sales of crossover passenger cars were 49,000 and 45,000 respectively, down by 51.1% and 54.1% respectively.

Image source: website of Ministry of Industry and Information Technology

  In March, China brand passenger cars sold 433,000 vehicles, down 48.2% year-on-year, accounting for 41.5% of the total passenger car sales, and its share increased by 0.2 percentage points year-on-year.

  From January to March, the cumulative sales of China brand passenger cars was 1.155 million, down 47.3% year-on-year, accounting for 40.1% of the total sales of passenger cars, and the share decreased by 1.5 percentage points year-on-year. Among them, the sales volume of cars was 265,000, down 48.7% year-on-year, with a market share of 20.1%; The sales volume of SUVs was 752,000 units, down 41.3% year-on-year, with a market share of 54.8%. MPV sold 91,000 vehicles, down 69% year-on-year, with a market share of 67.2%.

  — — Commercial vehicle sales in March decreased by 22.6% year-on-year.

  In March, the production and sales of commercial vehicles were 373,000 and 388,000 respectively, down by 20.3% and 22.6% respectively. In terms of vehicle types, the production and sales of trucks were 341,000 and 357,000 respectively, down by 20.3% and 22.1% respectively. The production and sales of passenger cars were 32,000 and 31,000 respectively, down by 20.9% and 28% respectively.

  From January to March, the production and sales of commercial vehicles were 790,000 and 794,000 respectively, down by 28.7% and 28.4% respectively. In terms of vehicle types, the production and sales of trucks were 721,000 and 728,000 respectively, down by 29.3% and 28.2% respectively. The production and sales of buses were 69,000 and 66,000 respectively, down by 22.9% and 30.7% respectively.

Image source: website of Ministry of Industry and Information Technology

  In March, the sales of new energy vehicles decreased by 53.2% year-on-year.

  In March, the production and sales of new energy vehicles were 50,000 and 53,000 respectively, down by 56.9% and 53.2% respectively. In terms of vehicle types, the production and sales of pure electric vehicles were 38,000 and 40,000 respectively, down by 58.5% and 55.6% respectively. The production and sales of plug-in hybrid vehicles were 11,000 and 13,000 respectively, down by 50.2% and 44.1% respectively. The production and sales of fuel cell vehicles were 38 and 36 respectively, of which the output increased by 5.6% year-on-year, and the sales volume was the same as the same period.

  From January to March, the production and sales of new energy vehicles were 105,000 and 114,000 respectively, down by 60.2% and 56.4% respectively. In terms of vehicle types, the production and sales of pure electric vehicles were 77,000 and 85,000 respectively, down by 61.8% and 58.6% respectively. The production and sales of plug-in hybrid electric vehicles were 28,000 and 29,000 respectively, down by 55% and 48.5% respectively. The production and sales of fuel cell vehicles were 183 and 207 respectively, down by 19.7% and 7.2% respectively.

Image source: website of Ministry of Industry and Information Technology

  From January to February, the main business income of key enterprises decreased by 32.8% year-on-year.

  From January to February, the main business income of key enterprises (groups) in the automobile industry totaled 382.7 billion yuan, down 32.8% year-on-year; Accumulated profits and taxes totaled 21.16 billion yuan, down 65.1% year-on-year.

  Automobile exports increased by 0.8% year-on-year in March.

  In March, 91,000 vehicles were exported, a year-on-year increase of 0.8%. In terms of models, the number of passenger cars exported was 68,000, a year-on-year increase of 21.9%; The number of commercial vehicles exported was 23,000, a year-on-year decrease of 33.8%.

  From January to March, 204,000 vehicles were exported, down 11.5% year-on-year. In terms of models, the number of passenger cars exported was 154,000, a year-on-year increase of 5.3%; 50,000 commercial vehicles were exported, down 40.7% year-on-year.