May 30 this year is the fourth "National Science and Technology Workers' Day."

  In his reply to the representatives of 25 science and technology workers including Yuan Longping, Zhong Nanshan, and Ye Peijian, General Secretary Xi Jinping pointed out in May 29 that innovation is the first driving force for development, and technology is a powerful weapon to overcome difficulties.

  In the special period of facing the new crown pneumonia epidemic and accelerating the resumption of labor and production, science and technology workers have played a prominent role. They are fighting against the clock to help prevent and control the epidemic. They continue to innovate and support the resumption of labor in various industries.

On May 27th, the young engineers of China Railway Construction Heavy Industry Group conducted shield machine testing. Xinhua News Agency (photo by Li Jialun)

"No time, we want to hurry up and hurry up"

  Accelerate the construction of a national medical science and technology innovation system-this is the strongest voice of Academician Wang Chen, member of the Standing Committee of the Chinese People's Political Consultative Conference and president of the Chinese Academy of Medical Sciences The proposal of the National Committee of the Chinese People's Political Consultative Conference and academician Chen Wei of the Academy of Military Medical Sciences of the Chinese Academy of Military Sciences is to build my country's biosafety science and industrial innovation center.

  During the two sessions, the voice of anti-epidemic technology attracted attention.

  Fighting the epidemic is not only a battle between humans and viruses, but also a race between scientific research and time. In this battle without smoke, a batch of scientists and technicians competed against each other to ask for answers and methods from science, and provided strong scientific and technological support for winning the epidemic prevention and control of the people's war, the overall war, and the war of resistance.

  "Successful research and development one second early, you can detect and diagnose one second early." Liu Jia, deputy dean of Life Science Research Institute of Shengxiang Biotechnology Co., Ltd., said that when the new coronary pneumonia outbreak occurred, the company set up an emergency response The special group aims at research and development of a new, rapid, simple and high-throughput coronavirus nucleic acid detection kit.

  Liu Jia said that during that time, the team members were spinning around in the laboratory and office every day, tired and lying on the table to sleep for a while, hungry to eat instant noodles. With the efforts of the R & D staff, it took less than 20 days from the successful product development to obtaining the emergency registration approval of the State Food and Drug Administration. At present, the new coronavirus nucleic acid detection kit developed by the company has been used for the first-line use of domestic and foreign epidemic prevention and control.

  This sense of urgency is the most expressed by many scientific and technological workers who stick to the frontline of research and development to fight the epidemic.

  “Every extra ventilator is produced, you can earn a little more time for your life.” When the outbreak occurred, Chen Shaochun, chief scientist of Shenyang Maxi Medical Technology Co., Ltd., gave the supplier two years of spare parts for high-flow oxygen therapy equipment in advance Order. Improve process flow and equipment efficiency ... In just 40 days, more than 3,200 high-flow humidifiers and medical non-invasive ventilators have been provided to the country, and a year's output has been put together in one month.

  "Every additional sample is tested, it will provide one more data support for the early victory over the epidemic." In the face of the epidemic, 11 "post-80" doctors including Li Lianfeng from the Harbin Veterinary Research Institute of the Chinese Academy of Agricultural Sciences were ordered to form new clinical samples for coronary disease team. In more than half a month, 11 people ate and lived in the institute, and completed the task of testing more than 4,000 samples.

  "There are often all nights, and staying up late is the norm. But during the epidemic, it is not time to wait, we hope to hurry up sooner." Team member Li Lianfeng said.

On April 27, researchers from the Harbin Veterinary Research Institute of the Chinese Academy of Agricultural Sciences conducted testing in the laboratory. Xinhua News Agency

"Big moves" are frequent, and science and technology become a "heart-pill" to support the resumption of production

  The resumption of production and production in an orderly manner throughout the country is inseparable from the strong support of scientific and technological forces.

  In the workshop of PetroChina Liaoyang Petrochemical Company, the polypropylene melt-blown material is being produced on the intelligent production line. During the epidemic, the demand for masks soared, and its main raw material, melt-blown non-woven fabrics, became tight. Polypropylene meltblown special materials are the core materials for the preparation of meltblown nonwoven fabrics. In a period of time, the supply is in short supply. If the supply is cut off, it will directly lead to the suspension of production of many mask enterprises ...

  The core technology for preparing polypropylene meltblown materials is in the hands of a few domestic companies. In order to solve the problem of shortage of supply, Wang Jian, a senior technical expert of CNPC and the director of the Research Institute of Liaoyang Petrochemical Company, took over the "Military Order" and immediately organized a technical team of more than 20 people to carry out research and development on the preparation of polypropylene melt-blown special materials. Purchasing raw materials, repeatedly testing the formula, and constantly optimizing the ratio ... In the key stage of the key problem, several members of the formula group sometimes return to the laboratory after sleeping less than 5 hours a day. After hundreds of tests, the team successfully developed the core technology for preparing polypropylene melt-blown materials at the fastest speed, and quickly put them into production on March 30. The annual production of polypropylene melt-blown materials can reach 2000 tons, allowing many downstream The melt-blown non-woven production line and even the mask factory took a "heart-pill."

  In the Changsha No. 1 Industrial Park of China Railway Construction Heavy Industry Group, in a cheer, the team of R & D technician Fan Ruiqiang successfully completed the pressure test of the shield machine air cushion cabin.

  The speed of urban rail transit construction depends on major equipment such as shield machines. With the resumption of production and resumption of production, in order not to let the development of the shield machine affect the construction process of the rail transit project, the team did not stop working 24 hours a day and systematically completed more than 2,000 shield machine development procedures. The new shield machine is expected to complete the acceptance in June for the construction of the cross-river tunnel on Genshan Road in Hangzhou.

  Innovation is everywhere. After the outbreak, the wisdom of some scientific and technological workers made the resumption of work more efficient.

  Before going to Beijing, Qi Songyu, a representative of the National People's Congress and a senior technician at the Red Flag Factory of China FAW Group Co., Ltd., repeatedly shuttled through the factory to test and repair equipment and arrange the work in advance. As the winner of the China Skills Award, he mainly undertakes scientific and technological innovation in enterprises. In the national skill master studio, he showed recent results: 8 kinds of sensor devices that monitor different performances can automatically diagnose the operation of manufacturing equipment and realize intelligent predictive maintenance. There is also a remote AR maintenance technical support system. When there is a problem with the manufacturing equipment, even if the maintenance personnel are not at the fault site, they can be "immersive" for effective guidance.

Facing difficulties, major aerospace projects strive for excellence to meet the "big test"

  "After multiple evaluations, the six major technologies of" Tianqin One "passed the orbit verification and will soon enter the stage of expansion experiment." As the chief scientist of the "Tianqin Project" for space gravitational wave detection, during the two sessions, the National People's Congress and the President of Sun Yat-sen University Academician Luo Jun delivered such good news.

  After the launch of "Tianqin One" at the end of last year, in addition to solving technical problems, the team members must also meet the challenges of the epidemic. Ye Xianji, deputy director of the Sun Yat-sen Center of Sun Yat-sen University, said that due to mission requirements, some members worked in Wuhan in January this year. After the outbreak, the movement of these members was restricted, and some scientific research was forced to be delayed.

  In the face of difficulties, the team showed a more aggressive fighting spirit. The instruction to the satellite was delayed, the time was rushed to make up for the operation, everyone complemented each other to ensure that there was no "stuck" ... On May 21st, "Tianqin No. 1" successfully completed the half-year mission in orbit. The second country to master high-precision inertial reference technology for space gravitational wave detection tasks.

  The ignition command was issued and the rocket was lifted off the launch pad ... On May 5, the Long March 5B carrier rocket "Fat 5" went straight into the sky and was successfully launched with a new-generation manned spaceship test ship and a flexible inflatable cargo return cabin test cabin.

  The special control cable for the "Fat 5" rocket body is manufactured by Hunan Valin Cable Co., Ltd. Zhang Gongzhuo, chief expert of Hunan Hualing Cable Co., Ltd., told reporters with a small cable, special cables must adapt to harsh environments such as strong destructive power and high temperature. In order to ensure its accuracy, during the epidemic, the R & D personnel continued to go deep into the scene and verified it countless times.

  While Zhang Gongzhuo and others shared the joy of the "Fat Five" successful launch, a group of science and technology workers were debugging the Mars rover. At the Changchun Institute of Optics, Fine Mechanics and Physics, the Chinese Academy of Sciences, Ji Qigang, an associate researcher, returned from a business trip in Wenchang, Hainan Province, where he completed the relevant testing work of the Mars rover.

  It is not without fear and worry. When the epidemic happened, Ji Qi had been in Wenchang City. His wife was 6 months pregnant and his family was worried about his safety. However, the tasks are all reversed. The entire project will be affected if there is no one person and an hour delay.

  "If we do more, our country is expected to change from a" runner "to a" peer runner "or even a" leader "one day earlier," said Chen Tianlu, executive deputy director of the Key Laboratory of the Ministry of Space Line Education of Tibet University. .

  Reporters: Chen Jun, Chu Xiaoliang, Meng Hanqi

  Participate in writing: Xie Ying, Wang Bingkun, Dong Ruifeng, Wang Jian, Ma Xiaocheng, Yan Rui, He Leijing