... 二甲胺聚合物：dimethylamine polymers 二级优化方法：two-level optimization method 二阶伴随模型：second order adjoint model ...
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A quasi analytic method for solving structural optimization problems is developed by coordinated use of mathematical transformations, high quality approximation and two level approximation strategy.
协同利用数学变换、高精度近似和二级逼近策略，提出了一种求解结构优化问题的准解析法。
A two-level aerodynamic optimization method based on surrogate models is proposed for aerodynamic optimization of high altitude long endurance UAV family configuration design.
针对高空长航时无人机族气动外形优化问题，通过借鉴多学科优化中的二级优化和代理模型方法。
An efficient solution method for structural optimization is proposed by coordinated use of mathematical transformation, two level approximation concepts and dual theory.
利用包络函数、二级近似概念和对偶理论，提出了一种结构优化的有效解法。
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