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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