| 摘要 |
<p>The flag has sleeves (3, 4) formed on its longest sides. These sleeves form a volume (13, 19) which has an air inlet through which air will flow to fill the sleeves. The air escaping from the sleeves by an air outlet. The sleeves (3, 4) are made so that their section becomes narrower from the flag edge towards the extreme edge of the flag. Alternatively air sleeves (26) can be formed in the edge of the flag farthest away from the pole. In this case air enters the sleeve via partly open sides and escapes through the ends.</p> |
