annular gear

• 环形齿轮

annular gear的用法和样例：

例句

1. Worn teeth on ring gear or drive pinion gear.
   环形齿轮或驱动小齿轮上齿磨损。
2. As long as the truck is moving in a straight line, the ring gear, differential gears, and drive axles turn together without variation of speed.
   当卡车直线行驶的时候，环形齿轮，差速器齿轮和驱动轴便会无变速的一起转动。