diplex telegraphy

例句：

1. 1.The diplex telegraphy system is used to transmit signals over two wires simultaneously.
   双线电报系统用于同时通过两条线路传输信号。
2. 2.In the early days of telephone communication, diplex telegraphy was a common method for sending long distance messages.
   在电话通信的早期阶段，双线电报是一种常见的远距离消息发送方法。
3. 3. The diplex telegraphy system has been widely adopted in modern communication networks.
   双线电报系统已被广泛应用于现代通信网络中。