telephone exchange
短语词组
- telephone lock exchange center 电话当地交换中心
- telephone local exchange center 电话局部交换中心
- conference telephone tandem exchange 议电话汇接机
- telephone e exchange 电话局
- telephone teletypewriter exchange 电话电传电报交换机
- private video telephone branch exchange 专用可视电话小交换机
- automatic telephone exchange [通信]自动电话交换局;[通信]自动电话交换机;程控电话;自动
- capacity of telephone exchange 电话局容量
- digital telephone exchange 数字电话交换局;数字电话交换机;数字 返回 telephone exchange