English translation for "四线制交换中心"

four-wire switching center
four-wire switching centre

Similar Words：

"四线制电话线路" English translation, "四线制电路" English translation, "四线制多路复用设备" English translation, "四线制话频电话中继器" English translation, "四线制交换" English translation, "四线制配线" English translation, "四线制线路" English translation, "四线制线路适配器" English translation, "四线制增音器" English translation, "四线制终端设备" English translation