短语词组短语driving tapered gear shaft 主动锥齿轮轴driving g gear shaft 主动齿轮轴driving gear shaft cover 主动齿轮轴端盖driving gear shaft of motor 电机主动齿轮轴driving shaft gear 主动齿轮cam shaft driving gear 凸轮轴传动齿轮凸轮轴传动装置 返回 driving gear shaft