Caprotti valve-gear

例句：

1. 1.The Caprotti valve-gear is a critical component of the oil system.
   Caprotti阀门齿轮是油系统的关键部件。
2. 2.The engineers carefully adjusted the Caprotti valve-gear to ensure optimal performance.
   工程师们仔细调整了Caprotti阀门齿轮以确保最佳性能。
3. 3. During maintenance, the technicians replaced the worn Caprotti valve-gear with new ones.
   在维护期间，技术人员用新的磨损的Caprotti阀门齿轮替换了旧的。