| 摘要 |
<p>The wing which is held behind a skier is a curved semi-ovoid sheet (1). At the base of the curve there is an opening (3) limited by a pipe (2) in the form of a funnel, through which the air can escape. At lower corners (6) of the sheet there are 2 straps (7) which are fixed to the skier's legs. At its upper corners (9) there are 2 handles (10), in the form of balls, which the skier holds. The length of the straps and handles is adjustable.</p> |
