| 摘要 |
The invention relates to a construction element in the form of a panel, consisting of a frame 1 inside which a network of crisscrossed ribs 2, 3 stretches out, each node of the network being such that the crest surface of each rib is not secant and that the latter forms there a dihedral 6, 8, 9, forming an element which transversely stiffens the crest surface. <IMAGE>
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