friction pulley
短语词组
- friction n pulley cloth 涩带呢
- friction n pulley 摩擦轮
- friction mandrel pulley 摩擦轮
- friction pulley friction wheel 摩擦轮
- diameter of friction pulley 摩擦轮直径
- minor friction pulley 小擦轮
- major cycle friction pulley 大擦轮
- major friction pulley 大擦轮 返回 friction pulley