quiescent-carrier telephony 静态载子电话...voice-frequency telephony 音频电话术...automatic telephony 自动电话学...wire telephony 有线电话...telephony n.电话学,电话通信,电话制造...carrier telephony 载波电话...frequency-modulated carrier-curr-ent telephony 调频载波电流电话...Digital Telephony Act 数字电话法令...
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