- 相关词组
- time-assigned signalling时间分配信号方式
- voice frequency signalling current音频振铃电流
- wayside signalling线路信号(设备)
- position signalling apparatus位置信号器
- speech digit signalling语言位信令
- out band signalling带外信号方式
- outbound signalling发车信号
- track-circuit signalling轨道电路信号
- unipolar signalling单极信号传输
- power signalling动力信号装置;动力信号法
- position signalling位置信号
- voice-frequency signalling音频信号方式
- two-frequency signalling双频制信号
- winding signalling提升信号装置
- uniwave signalling method单频信号法
- uniwave signalling单频信号法
- visual signalling视觉通信
- underwater signalling水下信号
- overlap signalling交叠信号方式
- out-slot signalling时隙外信令
- 今日热词
- 热门搜索
- league n.联盟;社团;（运动）联合会、联赛;里格（长度单位，约等于 3 英里）;
- nationwide adj.全国性的;
- nervous adj.神经紧张的;神经质的;神经的;
- pleased adj.高兴的;乐于做的;
- appendix n.附录;阑尾;附加物;
- westwards adv.向西;
- fright n.恐怖;惊吓;可怕的东西，难看的人;
- centigrade n.摄氏温度;
- solution n.解决办法;溶解;答案;
- HDTV abbr.High-Definition TV 高清晰度电视;
- car n.小汽车;轿车;(某种类型的)火车车厢
- workman n.工人;技工，工匠;
