unlocking cam spring

例句：

1. 1.The new car's key has a special feature that can unlock the locking cam spring.
   这款新车的钥匙有一个特殊功能，可以解锁锁定凸轮弹簧。
2. 2. The mechanic replaced the faulty locking cam spring with a new one.
   机械师用一个新的替换了故障的锁定凸轮弹簧。
3. 3. The engineer designed the new model to have a more secure locking cam spring system.
   工程师设计了新款模型，具有更安全可靠的锁定凸轮弹簧系统。