短語(yǔ)詞組短語(yǔ)gangway y ladder rail 舷梯欄桿gangway y ladder 舷梯pneumatic gangway ladder 氣動(dòng)舷梯gangway ladder rail 舷梯欄桿Hand gangway ladder winch 手搖舷梯絞車Turnable treads steel gangway ladder 活動(dòng)踏步鋼質(zhì)舷梯ladder gangway 舷梯accommodation ladder gangway 舷梯 返回 gangway ladder