signalling equipment的意思|示意

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signalling equipment相关短语

1、 inband signalling equipment 带内振铃设备

2、 group signalling equipment 组信号设备

3、 cab signalling equipment 机车信号设备

4、 main signalling equipment 总信号设备

5、 Subgroup Signalling Equipment 列信号设备

6、 trackside signalling equipment box 路轨旁讯号仪器箱

7、 signalling equipment room 信号机械室

8、 distress signalling equipment 呼救设备