铁道通信信号
railway signalling & communication
办公室间共享信道信号处理
common channel interoffice signaling
单信道信号分离
single channel signal separation
服务计算机发信号信道
service computer signaling channel
公信道信号传送
common channel signalling
同信道信号接收
cochannel signal recovery
信道-信道衔接器
channel-to-channel adapter
铁路通信信号
railway communication and signaling
Railway Signalling and Communication
railway communication and signalling
railway signaling and com munication
Railway Signal and Communication
铁路通信信号工程技术
railway signalling & communication engineering
铁路信号信息传输
railway signal information transmission