以下为句子列表：
英文: A criterion of the minimum displacement of the top of dam bodies along the stream direction was developed by use of the basic concept of nibble evolutionary structural optimization (ESO) for discussion of the physical meaning of the triangular section of
中文: 摘要为探讨重力坝三角形基本断面设计的物理机制，利用细啃渐进结构优化(ESO)方法的基本概念，建立了坝顶顺河向位移敏感度准则。
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英文: In order to solve optimization calculation efficiency problem of large structures with more than ten thousand degrees of freedom, based on the evolutionary structural optimization method, combining with the iteration method of structural displacement calc
中文: 摘要为了提高拥有数万个单元以上的三维机械结构拓扑优化的计算效率，基于渐进结构优化方法，并结合结构位移计算的迭代方法，建立一套三维机械结构拓扑优化的求解策略和算法。
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英文: In regard to nonlinear stochastic optimization in which the restraint function was nonlinearly expressed with stochastic parameters, the advanced first-order second-moment method was employed to study the structural optimization numerical model based on c
中文: 摘要针对约束函数被随机参数非线性表达的随机非线性优化问题，采用改进均值一次二阶矩法，研究基于元件可靠度或各失效模式可靠度的结构优化的数学模型，以及将随机优化问题化为确定性优化问题的方法。
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英文: On the basis of force analysis on grinding whet loading mechanism, structural optimization of grinding machine is carried out.
中文: 摘要在钢坯修磨机砂轮加载机构受力分析的基础上，对修磨机结构进行了优化。
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英文: The results demonstrated that the response surface method in structural optimization of impacting energy absorption was feasible, and had merits of high computing efficiency and short computing time.
中文: 研究结果表明响应面法应用于碰撞吸能的结构优化问题上是可行的，具有提高计算效率，节省计算机叶间等优点。
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