Regular icosahedron
- 网络正二十面体
Regular icosahedron-
The regular icosahedron measuring technique is used in measurement of anomalistic cannon-shot average fragment windward area , and by this means , a kind of measuring system is designed . The average windward area is a very important parameter of typical fragment muzzle velocity measurement .
采用二十面体方法的迎风面积测量技术作为不规则形状的炮弹破片平均迎风面积的测量方法，并以此设计出了破片迎风面积测量系统，为下一步的典型破片初速测量提供重要参数。
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