价值分析方法被广泛应用于方案的评价与优选活动中。
Value Analysis(VA) has been used widely in the field of evaluation and optimization of projects.
现应用灰色系统理论，把定量分析与定性分析结合起来，用灰关联度来评价方案的优劣，为优选方案提供理论依据。
Using grey system theory, the author applied grey relation degree to optimize plan and provide theory basis through the quantitative and the qualitative analysis.
产品总体方案评价与优选决策是产品设计过程中的重要步骤，它是决定总体设计之后进行详细设计的关键环节。
The evaluation and optimum selection for product outline schemes is a very important step from conceptual design stage to detail design stage.
产品总体方案评价与优选决策是产品设计过程中的重要步骤，它是决定总体设计之后进行详细设计的关键环节。
The evaluation and optimum selection for product outline schemes is a very important step from conceptual design stage to detail design stage.
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