| 摘要 |
<p>The two vertical columns (1,2) have pairs of horizontal stabilizing arms (3-6) which have hinges (34,36) on their midpoints and height-adjustable feet or lifting pads (7-10) on their ends. The height adjustment may be achieved using ratchet levers. The vehicle lifting elements (1a,2a) are attached to the vertical columns.</p> |
