短语词组短语hatch h cover rack 舱口盖板隔架hatch h cover 舱口盖板Hatch -cover 舱盖cargo hatch pontoon cover 箱形货舱口盖hatch -cover winch 舱口盖绞车sliding hatch -cover 滑动舱口盖lift -off hatch-cover 提升式舱口盖hydraulic -driven hatch-cover 液压驱动舱口盖 返回 hatch cover