"Mechanical Five Tigers" refers to Tsinghua University, Shanghai Jiaotong University, Huazhong University of Science and Technology, Xi Jiaotong University and Harbin Institute of Technology. "Four Little Dragons" refer to Hefei University of Technology, Hunan University, Jilin University of Technology (now merged into Jilin University) and Yanshan University.
Machinery manufacturing is the most important basic industry of national economy. From the manufacture of pots and pans to the research and development of heavy equipment and machinery in big countries, it is inseparable from people's lives. Without good machinery R&D and production, there will be no good industry, no solid national defense, no convenience for the people and no prosperity for the country. Therefore, improving the level of machinery industry, realizing national industrialization, and then realizing the modernization of industry, agriculture, science and technology and national defense are the only way to develop the national economy, enhance comprehensive national strength, safeguard national security and build a world power.