基于纽结理论和图论，文章简化了多面体链环的HOMFLY多项式的计算。
Based on knot theory and graph theory, the paper simplifies the computation for HOMFLY polynomial of polyhedral links.
多面体链环是这些生物体的结构模型，在一定程度上，反映了生物分子的一些拓扑性质。
Polyhedral links are the structure model of these biomolecules, and reflect their topological properties in a degree.
对任意一个多面体图，四类多面体链环可以通过应用‘X -缠绕覆盖’到相关的简化集中得到。
For an arbitrary polyhedral graph, four classes of polyhedral links can be obtained by applying the operation of 'x-tangle covering 'to the related reduced sets.
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