At Hall 8 on the first floor of the Museum of Chinese Scientists, the "Star River Navigation Merit Eternal Glory - Lu Yuan's Nine 'July 1st Medal' Special Exhibition" jointly organized by the China Association for Science and Technology, China Aerospace Science and Technology Group, and China Aerospace Foundation is on display from July to October. Between graphics, videos, and physical objects, the story of Lu Yuanjiu, the recipient of the "July 1st Medal", promoting the development of China's aerospace industry is slowly unfolding. At the ceremony, Bao Weimin, an academician of the CAS Member, vice chairman of the Chinese Association for Science and Technology, and director of the Science and Technology Commission of China Aerospace Science and Technology Corporation, who was invited to the scene, shared a past story. Many years ago, Bao Weimin was responsible for the development of a certain model of equipment. During the testing process, the instrument accuracy of this model consistently did not meet the requirements. So, the development team reported the situation to Lu Yuanjiu. Lu Yuanjiu proposed to print out the test data. Soon, a thick stack of test data was sent to Lu Yuanjiu. Lu Yuanjiu took out the coordinate paper and meticulously calibrated all the test data. The data is connected one by one to form a curve. The curve is not smooth, with "spikes" appearing in some areas and "pits" appearing in others, forming a series of "burrs". Under the guidance of Lu Yuanjiu, the development team carefully studied the details and identified the problems, ultimately contributing to the research and development of equipment in China. Bao Weimin said, "Mr. Lu taught us at that time to learn how to find the problem from these 'burrs'. Burrs are small and sharp. Discovering problems from "glitches" is a vivid portrayal of Lu Yuanjiu's rigorous scholarship. Before his death, Lu Yuanjiu wrote this passage: it is necessary to conduct in-depth and detailed analysis of experimental data in order to obtain the actual performance and existing problems of the developed equipment; We should also take seriously all suspicious phenomena that occur during the experiment, which may contain unknown content. Mr. Lu's rigorous academic style is well-known in the field of aerospace. ”Wang Wei, an academician of the CAS Member and deputy director of the Science and Technology Commission of China Aerospace Science and Technology Group Co., Ltd., said, "Mr. Lu looks at students' papers and academic reports very carefully. Whether it's the title format, effective figures, or English spelling, if you find more than three errors, you will return." For the aerospace industry, preciseness and meticulousness are crucial. Lu Yuanjiu strictly demands himself and cannot tolerate any mistakes in his work. He has a widely quoted saying, "For products from heaven, if you fail with 99 points, it's equivalent to 0 points; if you pass with 100 points, you have to evaluate the quality." Lu Yuanjiu always adheres to the principle of pursuing excellence and putting quality first. In the 1990s, he played an important role in the analysis of major aerospace faults. In February 1996, the launch of the Long March 3B carrier rocket failed, and 76 year old Lu Yuanjiu was appointed as an advisor to the fault investigation committee in the face of danger. During the more than six-month fault investigation and review process, Lu Yuanjiu went deep into the research and development front line, tracked the test site, studied the test data, and worked tirelessly day and night for several consecutive days. In the end, the fault was accurately located and the failure mechanism was clearly analyzed. In the early stage of commercial development of the "Long March" rocket, Lu Yuanjiu repeatedly reviewed project technical standards and reliability verification, promoted domestic inertial navigation and other core products to reach the international advanced level, and helped the "Long March" series of rockets enter the international market. Lu Yuanjiu studied abroad in his early years and returned to his homeland after overcoming numerous obstacles in the early days of the founding of the People's Republic of China. He was one of the pioneers of automation science and technology in China. He first proposed the concept of "recycling satellites", creatively applied the perspective and methods of automatic control to discuss the principles of gyroscopes and inertial navigation, and led the development of China's first large-scale precision centrifuge, making outstanding contributions to major projects such as "two bombs and one satellite". (New Society)