lower cable

例句：

1. 1.The engineer lowered the cable to check the integrity of the connection.
   工程师将电缆降下来检查连接的完整性。
2. 2.The lower cable was exposed by the construction workers.
   建筑工人暴露了下电缆。
3. 3. The lower cable had been damaged during the storm.
   暴风雨期间，下电缆受损。