unitary common battery telephone exchanger的意思|示意
美 / /
英 / /
单一通用电池电话交换机
unitary common battery telephone exchanger的网络常见释义
单式共电交换机 ...式电话机 ; 共电电话机 common battery type telephone 共电式电话 unitary common battery telephone exchanger 单式共电交换机 ..