通过分析影响汽车覆盖件冲压方向选择的因素，建立了以评价函数法为基础的冲压方向优化模型。
By analyzing influencing factors on selection of pressing direction of automotive outer panels, the pressing direction optimization model based on the evaluation function method is created.
结合评价函数法将带约束的多目标优化问题转化为无约束优化问题，并给出相应的区间扩张，对相关定理进行了证明。
The paper, combined with evaluation function introduces the transformation of constrained problems into unconstrained ones, and offers an interval extension.
模糊综合评价法通过建立和确定因子集、评价集、隶属函数和权重集等模糊集合，进行环境评价。
The fuzzy comprehensive evaluation method appraises environment by establishing and confirming gene subclass, estimation subclass, subject function and weighted subclass.
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