slack adjuster worm plunger

例句：

1. 1.The engineer used a slack adjuster to adjust the tension of the cable.
   工程师使用一个松紧调节器来调整电缆的张力。
2. 2. The worm plunger was designed to move the piston smoothly.
   蠕虫式活塞被设计用来使活塞平滑移动。
3. 3. The slack adjuster and worm plunger were essential components in the assembly process.
   松紧调节器和蠕虫式活塞是组装过程中不可或缺的组件。