| 摘要 |
<p>A desk top in which a prestressing bar (20) having a convex upper surface (21) is located within a groove (11) in the bottom of the desk top. The ends of the bar are biased by plates (30) towards engagement with the upper surface of the groove whereby the desk top itself is biased towards a convex configuration, thereby compensating for forces tending to cause the top to bow downwardly. </p> |
