| 摘要 |
<p>A snow sports apparatus (10) including: a hollow housing (12) having an internal generally cylindrical surface (12) and supported, with its axis having a major horizontal component, for rotation about said axis; and means (60) to provide on said internal generally cylindrical surface (30), a surface that, as the housing (12) is rotated, is relatively traversable downwardly on skis or a snowboard on the initial rising part (115) of the surface's travel.</p> |
