| 摘要 |
PURPOSE: An icebox with a circular shape inside is provided to use the icebox in a field of construction work and enable workers to drink cool water in the field of construction work. CONSTITUTION: An icebox with a circular shape inside has a circular space inside. A hole is bored in a cap of a circular raw water container and a pipe through which water comes out is installed. The raw water container is put into the circular space. Several pieces of ice or dry ices are put between the circumference of the raw water container and the circular space. The circumference of the circular raw water container is 87cm and the length of the water container is 47cm. The width of the water container is 29cm and the thickness of the icebox is 61cm. The thickness of the pipe is 4cm.
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