cam follower rocker shaft

例句：

1. 1. The engine's performance is directly related to the quality of its cam followers and rocker shafts.
   发动机的性能与凸轮轴和滚子轴的质量直接相关。
2. 2. The manufacturer has invested heavily in research and development to improve the durability and reliability of these components.
   制造商在研究和开发上投入了大量资金，以提高这些部件的耐用性和可靠性。
3. 3. The design of the cam follower rocker shaft is crucial for ensuring smooth operation of the engine.
   凸轮轴的设计对于确保发动机平稳运行至关重要。