启动: firing; pulse-on; commission ...双音多频: dual-tone multifrequency从: follow移动: shift; move台: tower到: 39网络: network; electric network me ...停止双音多频，从移动台到网络: stop dtmf启动双音多频证实,从网络到移动台: start dtmf acknowledge停止双音多频证实，从网络到移动台: stop dtmf acknowledge（双音多频）音调: dtmf双音多频: dtmf double tone multi frequency; dtmf double tone multi-frequency; dtmf dual tone multifrequency; dtmf dual tone multiple frequency; dual tone multi frequency，dtmf; dual tone multi-frequency dtmf; dual-tone multifrequency双音多频制: dual-tone multifrequency system (dtmf)双音多频信号: dual-tone multifrequency signaling双音多频信令: dtmf dual tone multifrequecy signaling双音多频序列: dtmf双音多频应用: dtmf确认双音多频发送: conf.dtmf sending双音多频按键话机: dtmf phone set双音多频接收机: dual tone multifrequency receiver双音多频信号接收器: touch down point电话用双音多频式按键号盘测试方法: methods of measurement for pushbutton dialer with dtmf电话用双音多频式按键号盘技术要求: performance requirements of pushbutton dialer with dtmf双音多频式按键电话机测试方法: methods of measurement for pushbutton telephone with dtmf双音多频式按键电话机技术要求: performance requirements of pushbutton telephone with dtmf
