| 摘要 |
<p>The amphibious float for human propulsion has a central inflatable part (1) of large dia. Against this are placed other inflatable parts (2) of smaller dia. Each of these has, at regular intervals, semi rigid or rigid paddles (3) of dia. slightly greater than the central part. The circle through the paddle tops is slightly greater than that of the central parr and two side inflatable parts (4) and those carrying the paddles. It is of smallerdia. than the latter. There are also end parts (5,5'), one (5') being transparent and the other (5) in the inner space.</p> |
