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多孔板相当于均匀介质。
而二级框架用了与主材料近似样式和颜色的木质多孔板。
The secondary effective layer Outlines wooden cribriform panels used in similar pattern and color with the main material.
阐述了所谓多孔板体结构的概念、机制和材料组成要求。
The concept of multi-voided plate structure and its material components are introduced.
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