上向沟通upward communication
【电】 通讯波道communication channels
沟通焦虑communication apprehension
通信保密（性）communication security\nCOMSEC\n通信
双向无线电通讯two-way radio communication【通信】
形式沟通formal communication
【计】 循环通信系统loop communication system
信息通道communication channel