为了描述多枢纽选址与混合网络设计综合优化问题，引入了双层规划模型建立数学模型。

To express integrated optimization of multiple hubs location and mixed network design, a bi-level programming model was introduced for mathematical models.

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现有的求解算法或求解方法，都是针对特定的双层规划模型提出的，缺乏通用性和普遍性。

The existing solution algorithms or methods are designed to solve the particular bi-level programming models, which are lack of universality.

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在一定的置信度下，将双层规划模型转化为单层随机规划模型，并设计了相应的混合智能算法。

Transform the bilevel stochastic programming model into single-level stochastic programming model under certain confidence, and a corresponding mixed method is designed.

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