一、查新的概念 著名美籍华裔物理学家杨振宁１９９７年在我国物理学会上提到，目前我国的研究项目有４０％与国外同行重复。日本某学者在参观了我国某研究所后也曾提出，该所４０％的研究项目日本人已经做过。现在情况虽有了很大的改善，但科研中的重复研究仍然是影响我国科技 First, the concept of search New famous Chinese-American physicist Yang Zhenning mentioned in our Institute of Physics in 1997, at present 40% of our research projects with foreign counterparts repeat. A Japanese scholar once also proposed after visiting a certain institute in our country that 40% of the research projects in Japan have been done by the Japanese. Although the situation has greatly improved, the repeated research in scientific research is still affecting our country’s science and technology