| 摘要 |
The grid ribs (2) are connected with straight edge ribs (5) and at least at some rib connections (3) inlay components (7,8,10) are fixed. At some edge connecting points (6), corner inlay components (7) and side inlay components (8) are fixed. The corner inlay components have one inlay angle and the side inlay components have two inlay components.
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