Shipbuilding refers to the production industry of building or manufacturing ships, which is generally carried out in the slipway or dock in a professional facility shipyard. Shipbuilding itself applies a wide range of technologies. From the use of hull to engine, shipbuilding technology can be divided into several categories, including hull (or carrier, which is mainly based on basic design and structural design, and can be subdivided into steel ship, aluminum alloy ship, FRP ship, cement ship, wooden ship, leather ship, plastic pipe raft, etc.) according to materials Yi installation (such as electronic equipment, avionics, furniture, equipment other than main engine, etc.), turbine (marine main engine, such as steam turbine, gas turbine, diesel engine, nuclear reactor, etc.) and motor.