这是我们引向l·尤拉对图论的另一个贡献，即尤拉多面体定理，或简称尤拉公式。
This leads us to another contribution of Leonhard Euler to graph theory, namely Euler's polyhedron theorem or simply Euler's formula.
然后代入伯恩塞德公式，求得所有正多面体的顶点着色公式。
Then it is substituted in burnside formula all vertex-coloring formulas of the regular polyhedron are determined.
提出采用细分曲面进行船体曲面造型，结合多边形及多面体的几何特性计算公式进行船舶静水力性能参数计算新方法。
Curved surface shaping of ship hull by subdivision surface was presented, a new calculation method for ship hydrostatic properties was put forward based on the formulas of geometry property.
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