wet part

例句：

1. 1. The engineer analyzed the wet part of the engine to determine its efficiency.
   工程师分析了发动机的湿部分，以确定其效率。
2. 2. During the construction process, we need to pay attention to the wet parts that may cause leaks.
   在施工过程中，我们需要关注可能导致泄漏的湿部分。
3. 3. The wet part of the car was fixed by the mechanic to prevent further damage.
   汽车的湿部分被机械师修理，以防止进一步损坏。