| 摘要 |
PROBLEM TO BE SOLVED: To enjoy and practice skiing even in a narrow place nearby regardless of seasons while the season and a place are limited to do that (generally, it is required to go to a far skiing ground in winter). SOLUTION: A sliding surface is moved and skiing is executed on it. As a system for moving the sliding surface, there are the ones for circulating it in a belt shape and for rotating a disk-like sliding surface.
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