aft engine造句

• This ship is built of steel , all - welded , double engines , double propellers , double rudders and single deck , aft engine . the ship is built of double bottom in way of cargo space and double skins structure
  本船为全焊接钢质双机双桨双舵单甲板艉机型散装苯乙烯液货运输船，液货舱区域为双底双壳结构。