unlocking lever nut

例句：

1. 1. The engineerused a special tool to unlock the locking lever nut.
   工程师使用特殊的工具来解锁锁定杠杆螺母。
2. 2. Thetechnician had to remove thelocking lever nut beforehe could start the machine.
   技术人员在开始机器之前必须移除锁定杠杆螺母。
3. 3.The carpenter carefully replaced the locking lever nut to ensure the doorwas properly secured.
   木匠仔细地更换了锁定杠杆螺母，以确保门被正确锁紧。