printing-telegraph code

例句：

1. 1.The printing-telegraph code was used to transmit messages over long distances.
   印刷电报代码被用来在长距离上传输信息。
2. 2.This new technology uses the printing-telegraph code to secure data transmission.
   这项新技术使用印刷电报代码来确保数据传输的安全。
3. 3.The printing-telegraph code was a revolutionary development in the field of communication.
   印刷电报代码是通信领域的一项革命性发展。