短语词组短語hatch h cover rack 艙口蓋板隔架hatch h cover 艙口蓋板Hatch -cover 艙蓋cargo hatch pontoon cover 箱形貨艙口蓋hatch -cover winch 艙口蓋絞車sliding hatch -cover 滑動艙口蓋lift -off hatch-cover 提陞式艙口蓋hydraulic -driven hatch-cover 液壓敺動艙口蓋 返回 hatch cover