列车语音通讯 voice communication: 话频通信; 话音通信; 音频通信; 语音通信inductive train communication: 感应式列车通信mobile train communication: 移动列车通信train dispatching communication: 列调通信automatic secure voice communication: 自动保密电话通信; 自动保密有声通信下载手机词典可随时随地查词查翻译