plunger guide

例句：

1. 1. The plunger guide is essential for preventing the piston from sticking.
   活塞导向器对于防止活塞卡住至关重要。
2. 2.The engineer used a plunger guide to ensure smooth operation of the machine.
   工程师使用活塞导向器确保机器的平稳运行。
3. 3.The plunger guide was designed to minimize vibration and noise during operation.
   活塞导向器被设计成在运行过程中减少振动和噪音。