oil vacuum pump

例句：

1. 1.The oil vacuum pump is essential for maintaining the cleanliness of the oil storage tank.
   油真空泵对于保持油储存罐的清洁至关重要。
2. 2.The oil vacuum pump was designed to remove impurities from the oil before it was used in the engine.
   油真空泵被设计用来在发动机使用前去除油中的杂质。
3. 3. The oil vacuum pump is a crucial component of the oil system, ensuring that the oil flows smoothly and efficiently.
   油真空泵是油系统的关键部件，确保油流畅且高效地流动。