beveloid gear

例句：

1. 1. The machine uses beveloid gear to turn the screw.
   这台机器使用锥形齿轮来转动螺丝。
2. 2.The car has a beveloid gear that makes it easy to change gears.
   这辆车有一个锥形齿轮，使换挡变得很容易。
3. 3. The old clock had worn out its beveloid gear and needed to be replaced.
   旧时钟的锥形齿轮磨损了，需要更换。