| 摘要 |
<p>The equipment has a base comprising two edges (2, 4) resting on a ground spaced apart, where the edges are inclined toward each other and attached to one another in two spaced points. A link holds two tensioned bottom bows and rests on the ground in a vicinity of middle portions. Each bow comprises multiple segments that are connected to an end by lockable hinges, where the bows are deployed in a use position such that the points are maintained and locked by the tension link.</p> |
