| (subclass RollOnRollOffCargoShip CargoShip) | Transportation.kif 2340-2340 | 滚上滚下货船 是 货船 的 subclass |
| (subclass ContainerRoRoCargoShip RollOnRollOffCargoShip) | Transportation.kif 2344-2344 | ContainerRoRoCargoShip 是 滚上滚下货船 的 subclass |
| (subclass VehicleCarrierShip RollOnRollOffCargoShip) | Transportation.kif 2346-2346 | 车载船 是 滚上滚下货船 的 subclass |
| (subclass PassengerLandingCraft RollOnRollOffCargoShip) | Transportation.kif 2351-2351 | 客运登陆艇 是 滚上滚下货船 的 subclass |
| (subclass RailcarCarrierShip RollOnRollOffCargoShip) | Transportation.kif 2354-2354 | 铁路运输船 是 滚上滚下货船 的 subclass |
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