Through building optimum model of truss Bridges, utilizing structural analysis methods and combining examples of optimum algorithms, the dynamic design of wide span truss Bridges is discussed.
通过建立斜拉桥优化模型，运用结构分析方法，结合优化算法计算实例，对大跨度斜拉桥的动力优化设计进行了初步的探讨和研究。
Through the analysis of the obstacles in the strategy communication, the author gives some basic models in building up the effective strategy communication model in this article.
作者通过对战略沟通障碍的分析，提出战略沟通的一些原则以及进行有效战略沟通的基本模式。
It is also compared that the difference between three-dimension and two-dimension model of building in vibration analysis.
比较了建筑三维模型和二维模型用于振动计算的区别。
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