Provided is a ship (41) having a spherical tank (42) wherein the spherical tank (42) is supported by a hull (45) having an uppermost end fixated to an equatorial part of the spherical tank (42) and a lowermost end having a cylindrical skirt (43) fixated onto a foundation deck (4). Vertical-through partitions (48), erected to be formed on the foundation deck (4) while forming the hull (45), are located outside in the extreme breadth direction from the bottom end to the top end, and have tilt angles ranging from 1/100-1/5 from the bottom end to the top end.
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