Based on the multi criteria decision theory and the vector projection, this paper introduces the principle and general steps of grey relation projection method.
介绍将多目标决策理论与矢量投影原理相结合，在工程项目评标中应用灰色关联投影法的基本原理和一般步骤。
A grey relation projection model for regional eco-environmental quality evaluation is established based on grey system theory and vector projection principle.
基于灰色系统理论和矢量投影原理，建立了区域生态环境评价的灰色关联投影模型。
Using grey system theory, the author applied grey relation degree to optimize plan and provide theory basis through the quantitative and the qualitative analysis.
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。
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