telephone ringer
【电学】电话交换机、计算机控制的
telephone dial exchange, computer-controlled
暂无补充释义。
telephone dial exchange, computer-controlled
暂无补充释义。
telephone ringer
speech-amplifying mutually talking telephone
fire reporting telephone【安全】 通信;fire telephone【安全】 通信
telephone answering machine
Nippon Telegraph &Telephone
SPC telephone exchange
computerized telephone
longitudinal-crossbar auto-telephone exchange