| 摘要 |
The invention relates to a plate having a rectangular surface (6a), comprising a solid (massive) deformable part (6) intended to be curved in the form of a cylinder portion having an axis of revolution oriented along a first direction (Y), comprising a concave face (6a) and a convex face (6b), two opposite edges (20x) of the solid part, oriented along a second direction (X), orthogonal to the first direction, being each provided over their entire length and on the convex face with a rib (22), in order to avoid anticlastic deformation of the solid part along the second direction when the plate is curved. <IMAGE>
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