Certain combinatorial structures have been used to construct good codes such that the parameters of the codes achieve their optimality.
利用某些组合结构可以构造出具有好的性质的码，使码的相关参数达到最优。
参考来源 - n，M，q固定时的最大极小距离（n，M，d；q）等距码·2,447,543篇论文数据，部分数据来源于NoteExpress
Trees are the simplest combinatorial structures that arise naturally in diverse applications.
树是结构非常简单而应用范围非常广泛的一种组合结构。
A combinatorial strategy of subsequences and the intrinsic characteristics of RNA secondary structure are adopted to compute the structures of planar multi-pseudoknots and a non-planar pseudoknot.
该算法采用子序列的组合策略和RNA二级结构的内在特性，计算多个平面伪结点和一个非平面伪结点结构。
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