一、国防科研活动及其成果的特点 军队是国家政权的象征，没有国防不成其为国家。国防建设是国家建设的重要组成部分，它是国家安全、政权稳定的基础。在现代社会，开展国防科研是加强国防建设的主要手段之一。国防科研和国防建设一样，属于社会公共需要；这是无可置疑的。社会 First, the characteristics of national defense scientific research activities and their achievements The military is a symbol of the state power, without national defense can not become a country. National defense construction is an important part of the nation's construction. It is the foundation of national security and political stability. In modern society, carrying out national defense scientific research is one of the major means of strengthening national defense. National defense research and national defense construction are just as social and public needs; this is beyond doubt. society