telegraph channel
短语词组
- telegraph grade channel [通信]電報級信道;電報級信道英語
- CT Carrier Telegraph channel 載波電報信道
- telegraph voice frequency channel [通信]電報音頻通路
- interband telegraph channel 帶間電報通路
- public telegraph channel 公衆電報電路
- telegraph -grade channel 電報級信道英語
- telegraph channel transmission equipment 報路傳輸設備
- single channel radio telegraph system 單路無線電報系統 返回 telegraph channel