subscriber line equipment

例句：

1. 1. This type of equipment is commonly used in the construction industry.
   这种设备在建筑业中常用。
2. 2. The company's new subscriber line equipment has been well received by customers.
   该公司的新订户线路设备受到了客户的热烈欢迎。
3. 3. The engineers are responsible for maintaining and upgrading the subscriber line equipment.
   工程师们负责维护和升级订户线路设备。