line oiler

例句：

1. 1. The line oiler is responsible for maintaining the pipeline's integrity.
   油线机负责维护管道的完整性。
2. 2.The engineer inspected the line oiler to ensure it was functioning properly.
   工程师检查了油线机，确保其正常工作。
3. 3. During maintenance, the line oiler was replaced with a new one.
   在维护期间，油线机被替换为一个新的。