[电子] 固定波道侦察 fixed-oribit reconnaissance satellite: 固定轨道侦察卫星fixed channel: 固定河槽; 稳定河槽cyclic fixed channel asignment: 循环定位cyclic fixed channel assignment: 循环定位fca fixed channel allocation: 固定通道分配; 固定信道分配下载手机词典可随时随地查词查翻译