| 摘要 |
<p>The plate has a frame (12) with parallel upper and lower surfaces (13, 14), and a wall (20) inclining from an upstream side (15a) to a downstream side (15b) of the frame. Openings (23a, 23b) are arranged in the sides of the frame in which upstream and downstream ends of the wall are situated. Supports (25) make projections on each of surfaces of the wall to define carrier surfaces (27, 28) parallel to the surfaces of the frame. A fixing unit fixes a blind on each of the surfaces (27, 28). The openings permit air to enter and circulate under the blind and along the wall. An independent claim is also included for an assembly forming a stack of two reversible plates.</p> |
