printer telegraph code

例句：

1. 1.The printer telegraph code is a method of transmitting information over long distances using a combination of electromagnetic waves and mechanical devices.
   打印机电报代码是一种利用电磁波和机械装置结合，远距离传输信息的方法。
2. 2. In the early days of telephone communication, the printer telegraph code was used to sendmessages between different locations.
   在电话通信的早期阶段，打印机电报代码被用来在不同地点之间发送消息。
3. 3. The printer telegraph code has since been replaced by more advanced methods of data transmission, such as digital signals and internet protocols.
   自那以后，打印机电报代码已被更先进的数据传输方法所取代，如数字信号和互联网协议。