m signal造句
造句与例句手机版
- E and m signaling system
信令系统 - Telecommunications - network to customer installation interfaces - analog voicegrade special access lines using e m signaling
电信.网络与用户装置接口.使用e amp ; m信令的模拟音频专用访问线路 - It's difficult to see m signal in a sentence. 用m signal造句挺难的