短語詞組短語axle arm pivot shaft 搖臂樞軸movable arm rotating shaft 動臂轉(zhuǎn)軸swing arm pivot shaft 搖臂框軸;搖臂樞軸arm rest shaft 臂軸pitmthe good arm rest shaft 搖臂軸rocker arm shaft bolt 搖臂軸螺栓rocker arm shaft bracket 搖臂軸支架steering arm shaft 轉(zhuǎn)曏臂軸transverse arm shaft 搖臂軸 返回 arm shaft