pipeline milker

例句：

1. 1.The pipeline was damaged during the construction.
   在建设过程中管道被损坏了。
2. 2. The pipeline carries oil from one region to another.
   这条管道将一种地区的石油输送到另一个地区。
3. 3.The pipeline is a crucial part of our transportation system.
   这条管道是我们交通系统的关键部分。