我们可以使用组合数学的分析方法，它用来计算不同组合的概率。

We can use a field of mathematics known as combinatorics, which deals with the likelihoods of different combinations.

组合数学中心是其中规模最大、最优秀的研究中心之一。

Combinatorics is a part of mathematics, which is done all over the world.

本文以可持续发展、系统动力学、组合数学、图论、复杂性分析等理论为工具。

Some disciplines, such as sustainable development, system dynamics, combinatorial math, graph theory and complexity analysis were the implements.

因此选择的内容主要是当前组合数学与图论中研究的十分重要课题。

Hence it contains some new and important topics of combinatorics and graph theory.