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Ski board for use by modern leisure person, has two-tier, which is folded downwards at both treads by hinge folding unit

机译：供现代休闲人士使用的滑雪板具有两层，由铰链折叠单元在两个踏板上向下折叠

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摘要

The board has a two-tier (3), which is folded downwards at both treads (4) by a hinge folding unit (2).

机译：该板具有两层（3），其通过铰链折叠单元（2）在两个胎面（4）处向下折叠。