The foam encased innerspring with internal three-dimensional foam structures is upholstered for use as a mattress, seating, or other flexible support structure.
具有内部三维泡沫结构的泡沫封装的内装弹簧被装饰用作床垫、座垫或者其他弹性支撑结构。
Based on results of test and calculation, it is concluded that the exterior steel-encased reinforced concrete frame-interior rc tube structures have very good seismic resistant performance.
试验和计算结果表明：外钢骨框架-内混凝土核心筒混合结构具有较好的抗震性能。
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