communication aid语言交往辅助器communicationn.交流；通讯；传达；通信；沟通communication network transformers通讯网络变压器Communication Security Depot Group通信保密仓库大队Communications and Instrumentation通信与仪表测量Communication system for emergency应急通信Communications And Tracking System通信与跟踪系统communication network architecture通信网结构Communications Electronics Officer通信电子官communication system effectiveness通信系统效能communication sequential processes通信顺序进程communication transmission network通信传输网