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Terms for subject Telephony (9 entries)

announce a call	通话预告
announce a call	接通通知
carbon transmitter	炭精〔粒〕送话器
disengaged line	空〔闲〕线
howl repeater	啸声增音机
key shelf	电键盘
key shelf	键座
through circuit	转接〔具有分接头的〕电路
two-party line	对讲〔两户合用〕电话线