line relay system

例句：

1. 1.The line relay system is crucial for maintaining communication in a large network.
   线路继电器系统对于维护大型网络中的通信至关重要。
2. 2.The engineers carefully designed the line relay system to ensure smooth operation.
   工程师们仔细设计了线路继电器系统，以确保其顺畅运行。
3. 3.The line relay system was tested extensively before deployment to ensure reliability.
   在部署前，对线路继电器系统进行了广泛的测试，以确保其可靠性。