communication aid语言交往辅助器communicationn.交流；通讯；传达；通信；沟通communications in Yunnan Province云南交通communication power supply system通信电源系统communication system of coal mine煤矿通信系统communication protocol plug-ins通信规约插件Communication University of Chinan.中国传媒大学Communications Operations Officer通信作业军官Communications Electronics School通信电子学校communication in the power system电力系统通信Communication Satellite Operation通信卫星活动communication based train control基于通信的列车控制