block signalman 线路所值班员
signalman engineering [军] 通信兵工程
fog signalman 雾信号员
railway signalman 铁路信号员
Signalman Training 通信兵训练
以上来源于: WordNet
N-COUNT A signalman is a person whose job is to control the signals on a particular section of a railway. (铁路段上的)信号工
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