line signal code

例句：

1. 1. Theline signal code is used to identify thelocation of a specific device on a network.
   线路信号代码用于识别网络中特定设备的位置。
2. 2. The line signal code was changed toimprove communication efficiency.
   线路信号代码被更改以提高通信效率。
3. 3. The line signal code is crucialfor maintaining the integrity of the network.
   线路信号代码对于维护网络的完整性至关重要。