卫星电视地球接收站测量方法室外单元测量 (GB/T 11298.3-1997) Methods of measurement for satellite television earth receive-only stationDoor-out unit measurement 发布时间: 1997-08-26 实施时间: 1998-05-01 阅读数量: (73) 标准分类: M 通信、广播