line interface unit

例句：

1. 1. Theline interface unit is responsible for transmittingdata over the network.
   线路接口单元负责通过网络传输数据。
2. 2. The line interface unit wasdesigned to improve signal strength and reliability.
   线路接口单元被设计来提高信号强度和可靠性。
3. 3. The line interface unit is crucialfor maintaining the integrity of the communication system.
   线路接口单元对于维护通信系统的完整性至关重要。