行星齿轮;行星减速齿轮;行星减速器
application of large - scale planetary reduction gear and lubrication system
大型行星齿轮减速机及润滑系统的应用
and the combination and the separation of the oil motor (8) and the planetary reduction gear (7) are controlled by the jack clutches (6).
通过牙嵌离合器(6)控制油马达(8)与行星减速器(7)的结合与分离。
瑞鸿网 · 高考英语
瑞鸿网 · 英语词汇