signaling equipment meaning in English

信号设备
振铃器

Practice and experience of signal equipment repair in skylight
修的实践与体会
Railway signal equipment manufacture , marketing
铁路信号器材制造、销售。
Railway signaling equipment - impedance bonds - test methods
铁路信号设备.阻抗联结器.试验方法
Technical specification for crossing signal equipment in wayside
铁路区间道口信号设备技术条件
Electrical rotating speed signal equipment
电气转速信号装置

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