| 摘要 |
At least one ship building berth space is provided on the ground adjacent to a dock facing open water. When a ship is built in the berth space, temporary partitioning walls are set up in a manner surrounding the berth space and the dock, and water is supplied into the area surrounded by the walls to cause the ship to float off the floor of the berth space, whereby the ship can be floatingly moved into the dock and then can be launched into the open water. |
