公用通信: public correspondence业务: vocational work; professiona ...专用通信业务: dedicated communication service批准使用通信业务: communication service authorization公用无线电通信业务: public radio communications services公用通信: pubic correspondence; public correspondence公用通信区: common communication area公用通信网: public network公用通信线: common communication line通信业务: communication service; communications service; signal service通信业务量: communications traffic; message volume; traffic通信业务密: density of traffic通信业务台: traffic statistic station通信业务网: traffic network公用通讯业务: public communication service公用通信程序: common communicator公用通信代理: common communication proxy公用通信服务: public telecommunications service公用通信后援: ccitt ccs common communications supportt公用通信载波: communication common carrier通信业务拥挤, 通信业务繁忙: heavy traffic安全通信业务: secure traffic长途通信业务: teletraffic; toll service传真通信业务: fax service船舶通信业务: shiservice
