The relationships between corrosion of steels and environmental factors in sea water have been studied by grey relational analysis method.
应用灰关联分析方法解析海水环境因素与海水腐蚀性的关系。
The grey trend relational analysis given by this pa-per offers a new method for analysing social and economic system.
给出了灰色趋势关联分析的一般步骤，为社会经济系统的灰联联分析提供了新的方法和途径。
Based on the grey system theory, a grey assessment model of groundwater quality is built by combining the method of grey relational grade analysis and the method of single factor contaminant index.
以灰色系统理论为基础，把灰色关联度分析方法和单因子污染指数法相结合，构造了一种适合于评价地下水质量的灰色模型。
By using the methods of grey relational analysis, stepwise regression analysis and key part analysis the key factors are fownd.
然后分别运用灰度关联、逐步回归分析、主成分方法选取主要影响因素；
At the same time, gas turbine blades, bearing materials and cutting tool materials were evaluated by Weighted Average, Improved Grey Relational Analysis (IGRA)and Fuzzy Assessment, respectively.
此外，运用加权平均法、改进灰色关联度法和模糊综合评价法分别对候选燃气涡轮叶片材料、轴承材料和刀具材料进行了评价。
At the same time, gas turbine blades, bearing materials and cutting tool materials were evaluated by Weighted Average, Improved Grey Relational Analysis (IGRA)and Fuzzy Assessment, respectively.
此外，运用加权平均法、改进灰色关联度法和模糊综合评价法分别对候选燃气涡轮叶片材料、轴承材料和刀具材料进行了评价。
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