suction valve disc

例句：

1. 1.The suction valve disc is responsible for preventing the engine from overheating.
   吸入阀盘负责防止发动机过热。
2. 2. The technician replaced the suction valve disc and checked the oil level.
   技术人员更换了吸入阀盘并检查了油位。
3. 3.The suction valve disc is a crucial component in the engine's operation.
   吸入阀盘是发动机运行中的关键部件。