英语词汇“ringdown signaling”的读音、翻译、释义、用法及例句-语文网

词汇	ringdown signaling
释义	ringdown signaling 振铃信号法一种对远距离的开关控制板或终端发信号（一般用低频交流信号）而实现通信的方式。
随便看	changeful changefully change gears change hands change into changeless changeling change of control change of destination change of heart change of life change of pace change of risk change of venue change of voyage change of voyage clause change-over changeover change purse change record change ringing changes change tape change the subject changing room

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