“十五”期间是国防科技工业发展、改革的重要时期。五十多年来，我国国防科技工业经历了三个重要发展时期。一是从建国初期到70年代末，经过几十年的努力，形成了门类齐全、基本配套的国防科技工业体系；二是从80年代开始至90年代，随着国家经济体制改革和对外开放的不断深入 The “10th Five-Year Plan” period is an important period for the development and reform of the national defense science and technology industry. For more than 50 years, China’s national defense science and technology industry has experienced three important development periods. First, from the early days of the founding of the People’s Republic to the end of the 1970s, after decades of efforts, a national defense science and technology industrial system with complete categories and basic support was formed. Second, from the 1980s to the 1990s, with the reform of the national economic system and opening to the outside world. Deepening