| 摘要 |
<p>The structure (1) has a set of horizontal outages (9, 11) that forms a set of ground support elements. A set of holding elements (5) is placed with a crossing of the horizontal outages. A set of jacks (3) is arranged in a height adjustable manner. A set of lower ends of the set of jacks rest on the ground. A set of upper ends carries the holding elements. A set of cables (13) attached to the lower end and the outages is maintained in tension so as to form a wind-bracing for the outages and the jacks.</p> |
