| 摘要 |
A panel structure (10) is formed from two sheets (12). The sheets (12) are spaced apart to provide a void (13) between them. The sheets (12) are tied together at various positions (14). The ties (14) are formed of substantiall y the same material as the sheets (12), in such a way that the sheets (12) and the tie means (14) form an uninterrupted body of material. The ties (14) lea ve unobstructed voids (13) within the plane of the panel. An elongate reinforci ng member (15) is located within one of the voids.
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