| 摘要 |
<p>The device has a rigid bed (1) inclined backwards, equipped with support (2) and connected with frontal buoyancy element (3), advantageously in the shape of a bow, situated in front and above the rear lowest bed (1) part and with rear buoyancy element (4), advantageously laterally flattened, located at the support (2) back and above rear, lowest bed (1) part. The bed (1) may narrow down towards the back to narrowed support (2) width and feature a longitudinally shaped, concave surface. The device may also have optional equipment.</p> |
