The coordination bond is widely used as the main driving force to construct metal-ligand macrocycles and polyhedron.
其中以配位键为驱动力构筑金属有机大环和多面体结构是超分子化学的研究重点。
This paper give the resolution of a combinatorial calculating problems by ways of calculating the indexes of dihedral group and regular polyhedron group.
通过对二面体群、正n面体群等指标计算给出一系列组合计数问题的解答。
On the generalization of Euler's formula of convex polyhedron
凸多面体欧拉公式的推广
In addition, the author defines this single game as: Although the GEG model of three-dimensional polyhedron is basically available, the interaction mechanisms among governance main bodies does not operate well and lacks of fund support.
笔者认为全球环境治理中的这个单次博弈为:在全球环境治理立体多面体模式基本具备的情况下,治理主体间互动性机制运行不畅,且缺少充足资金供给。
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