| 摘要 |
<p>The lower end of the tree trunk (2) has to be provided with two bores, crosswise positioned at slightly different heights. Two threaded bars (1) of a suitable length are guided through the wall of a large container (4), the appropriate bore in the tree trunk (2), and the opposite area of the container (4). The container (4) is provided with a multitude of bores at different heights and beside each other in order to facilitate an adjustment to the particular dimensions of the tree (2).</p> |
