Home / Standards / GB/T 12639-1990 GB/T 12639-1990 Abolished Methods of in-orbit testing for communication satellite payload performances 通信卫星有效载荷性能的在轨测试方法 Standard Type GBT ICS 33.060.30 CCS M35 Status 废止 Issue Date 1990-12-28 Implementation 1991-10-01 Responsible Dept 工业和信息化部（电子） Drafting Unit N/A