follower ring and washer

例句：

1. 1.The follower ring is a crucial component in the engine's operation.
   跟随者环是发动机运行的关键部件。
2. 2.The washer plays an important role in maintaining the cleanliness of the vehicle.
   洗涤器在保持车辆清洁方面起着重要作用。
3. 3. The engineer carefully inspected the follower ring and washer before installing them.
   工程师在安装前仔细检查了跟随者环和洗涤器。