annular gear的用法和樣例：
例句
- Worn teeth on ring gear or drive pinion gear.
環(huán)形齒輪或驅動(dòng)小齒輪上齒磨損。 - 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.
當卡車(chē)直線(xiàn)行駛的時(shí)候，環(huán)形齒輪，差速器齒輪和驅動(dòng)軸便會(huì )無(wú)變速的一起轉動(dòng)。
