将韧性度的优化设计理论运用于交通运输网络。

Analyze and study the traffic network system by using the optimal theory of the tenacity.

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运用有限元法和优化设计理论，建立机床主轴结构设计的优化数学模型，选择优化方法，进行了实例计算。

By applying finite element method and optimal design theory this paper carried out an optimal design model of the machine tool shaft, chosen optimal methods and given a living example.

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运用有限元法和优化设计理论，建立机床主轴结构设计的优化数学模型，选择优化方法，进行了实例计算。

By applying finite element method and optimal design theory this paper carried out an optimal design model of the machine tool shaft, chosen optimal methods and given a living example.

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