短語詞組短語ratchet -wheel gear 棘輪裝置ratchet sliding wheel spring 滑動大鋼輪簧ratchet winding wheel spring 上條大鋼輪簧ratchet gear wheel 棘齒輪ratchet winding wheel swing lever 上發(fā)條大鋼輪擺桿Brake ratchet wheel 棘輪制動器;棘輪制動輪;制動棘輪;繙譯conveyer drive ratchet wheel 輸送機主動棘輪ratchet wheel pawl weight 棘輪掣子鎚the ratchet wheel 大卷車 返回 ratchet wheel