短語詞組短語main inclined shaft 主斜井main incline shaft 主斜井gearbox main drive shaft 齒輪箱主動軸main drive shaft group 主傳動軸組main reaction shaft cable 主軸電纜crusher main -shaft 破碎機主軸main elevator shaft 提升機主軸Main bearing shaft 主軸瓦main chute shaft 主溜井 返回 main shaft