短語詞組短語connecting g lever screw nut 連桿螺絲帽four -connecting lever 四連桿機搆connecting lever screw nut 連桿螺絲帽Looper connecting lever 套口機連桿Looper connecting lever shaft 套口機連桿軸connecting lever rod 連接拉桿deformation of connecting lever parts 連桿部件變形foot lever connecting rod 踏腳連桿 返回 connecting lever