automatic subscriber line testing equipment

例句：

1. 1. This automaticuser line testing equipment is very useful fordetecting faults in telephone lines.
   这种自动用户线路测试设备对于检测电话线路中的故障非常有用。
2. 2. The companyhas developed a new typeof automatic user line testing equipmentthat can quickly identify and repair faults in the network.
   该公司已经开发了一种新型的自动用户线路测试设备，可以快速识别并修复网络中的故障。
3. 3. Theautomatic user line testing equipment is widely usedin telecommunications companies toensure the reliability of their networks.
   自动用户线路测试设备在电信公司中广泛使用，以确保其网络的可靠性。