基本解释[交通运输工程]顶球套英汉例句双语例句Pilot bearing in crankshaft. The pilot bearing in the crankshaft is usually either a Bushing or a Ball bearing.曲轴上的导向轴承：曲轴上的导向轴承一般或者是轴瓦，或者是球轴承。词组短语短语ball bearing guide bushing [机]滚珠导套专业释义交通运输工程顶球套