English translation for "共电制电话信号装置"

central battery signalling unit
centralbatterysignallingunit

Similar Words：

"共电制电话" English translation, "共电制电话机" English translation, "共电制电话交换机" English translation, "共电制电话交换机局" English translation, "共电制电话局" English translation, "共电制电话振铃" English translation, "共电制电话总局" English translation, "共电制复式塞孔盘" English translation, "共电制交换机" English translation, "共电制信号方式" English translation