短語詞組短語sea water ballast piping 海水壓載管道ballast piping arrangement 壓載管路布置plastic ballast piping 塑料壓載管系Ballast piping system 壓載管系bilge and ballast piping system 艙底水和壓載水系統(tǒng)bilge and ballast piping arrangement 艙底水和壓載水管系布置圖 返回 ballast piping