extractor plunger spring

例句：

1. 1. The pump plunger spring is essential for the proper functioning of the oil extraction system.
   泵活塞弹簧对于油提取系统的正常工作至关重要。
2. 2. The oil extractor plunger spring needs to be replaced regularly to ensure efficient oil extraction.
   油提取器活塞弹簧需要定期更换，以确保高效的油提取。
3. 3. The engineer carefully inspected the pump plunger spring and found no signs of wear or damage.
   工程师仔细检查了泵活塞弹簧，没有发现任何磨损或损坏的迹象。