reverse gear
n. 汽车倒车挡, 逆转齿轮
ph.
【机】回动齿轮, 倒车齿轮; 回动装置
reverse gearreverse gearn.1.■倒车挡;逆转齿轮;换向[回动]齿轮[机构]
reverse gear1.■倒车挡，后退齿轮2.■【机械学】逆转装置；回动装置；倒车齿轮；回动齿轮
reverse gearnoun- a gear used to make a vehicle or piece of machinery move or work backwards
回动齿轮；倒车齿轮；倒档装置