５０４所是航天总公司卫星有效载荷专业研究所。建所３０多年来，承担并出色完成了百余项航天工程任务，是航天系统有重大贡献的单位之一。自党的十一届三中全会以来，５０４所逐渐走向市场。从１９８３年开始了“军转民”的探索；１９８５年实行“军民分线”管理；１９８... 504 is the Institute of Spacecraft Corporation Satellite Payload Specialization. Over the past 30 years, the Institute has undertaken and outstandingly completed more than 100 aerospace engineering missions and is one of the major contributors to the space system. Since the Third Plenary Session of the 11th CPC Central Committee, 504 schools have gradually entered the market. From 1983 began the exploration of “military transfer to the people”; in 1985 the “military and civilian branch line” management was implemented; 198...