symmetric spherical pyramid 对称球面棱锥
base of a spherical pyramid 球面棱锥的底面
tri-pyramid folded-plate spherical reticulated shell 三角锥折板球形网壳
Spherical Tile Pyramid Model 球面瓦片金字塔模型
pyramid-spherical element 异型棱镜
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The advantages of two different structural types can be fully developed by combining the single-layer spherical dome and the double-layer square pyramid space grids into a new structural type.
在大跨结构中,将单双层网壳结合起来形成的一种结构形成———周边双层中部单层球面网壳结构,可充分发挥两种结构形式的优点。
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