数字通信: digital communication系统: system编码数字通信系统: coded digital communication system卫星数字通信系统: satellite digital communication system数字通信: dc digital communication; digicom; digital communications数字通信机: digital communicator数字通信网: dcn digital communication network; digital communications networks数字电视通信系统: ditec数字光通信系统: digital optical communication system数字数据通信系统: didacs digital data communication system; digital data communication system数字卫星通信系统: digital satellite communication system数字移动通信系统: digital mobile communication system数字有线通信系统: digicom数字指挥通信系统: dccs digital command communications system数字综合通信系统: digital integrated communications system编码数字通信: coded digital communication高速数字通信: high speed digital communication个人数字通信: pdc personal digital communication国际数字通信: international digital communication数字通信复用: digital communication multiplex数字通信公司: digital communications co数字通信设备: digital communication set数字通信通路: dcc digital communication channel; dcc:digital communication channel数字通信线路: digital line数字通信协会: dca digital communications associates