The hull constructions are including the main hull, forecastle, poop deck, deck houses, engineer room, engine casing, funnel, appendages (such as bilge keel, bulwark).

• 船体结构包括主船体，艏/艉楼，甲板室，机舱，机舱棚，烟囱，船体附件（如舭龙骨，舷墙）等。