共电式电话机
common battery telephone
common-battery telephone set
collective-electric telephone
common-battery (telephone) set
共电式电话交换机
common battery telephone exchange
common battery private branch exchange
光电信号电压
photoelectric signal voltage
通信信号电缆
Communication and Signal Cable
协作式信号信息处理
collaborative signal and information processing CS
accumulate body Yin liquid
共电电话机
common battary telephone set
telephone set
common battary
共电式话机
Common battery telephone set
共电式交换机
common battery switchboard
人公共电式交换总机
manual common battery switchboard