hand oiler body

例句：

1. 1. The handoiler body is essential for maintaining the proper functioning of the engine.
   手油泵体对于发动机的正常运作至关重要。
2. 2.The maintenance technician carefully removed the hand oiler body to inspect its condition.
   维护技术人员仔细地拆卸了手油泵体，以检查其状况。
3. 3. The new design incorporates a more efficient hand oiler body that reduces wear and tear on the engine.
   新设计采用了更高效的手油泵体，从而减少了对发动机的磨损。