rocker-arm plunger spring

例句：

1. 1. The rocker-arm plungerspring is responsible for the smooth operation ofthe car's engine.
   摇臂式活塞弹簧负责汽车发动机的平稳运行。
2. 2. Therocker-arm plunger spring wasreplaced after it failed to hold up underheavy use.
   摇臂式活塞弹簧在承受重压后失效，需要更换。
3. 3. The engineer carefully inspected the rocker-armplunger spring before installing it inthe new car.
   工程师在安装新汽车的摇臂式活塞弹簧前仔细检查了它。