齿轮 chǐlún gear Origin Definitions Defs Strokes Stroke Words Sentences Sents 差动齿轮 chādòngchǐlún differential gear 锥齿轮 zhuīchǐlún bevel gear pinion gear; bevel gear齿轮传动 chǐlúnchuándòng gear drive 齿轮箱 chǐlúnxiāng gearbox 齿轮齿条 chǐlúnchǐtiáo rack and pinion (mechanical engineering) rack and pinion