coded signal

例句：

1. 1. The coded signal was so complex that it took me hours to decipher.
   这个编码信号太复杂了，我花了好几个小时才解读出来。
2. 2.In this new communication system, the coded signal is transmitted over a secure network.
   在这个新的通信系统中，编码信号通过一个安全的网络进行传输。
3. 3. The engineers used a special coded signal to send secret messages.
   工程师们使用了一种特殊的编码信号来发送秘密信息。