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摘要: 针对灰色关联分析法存在的不足，根据扩展的广义加权距离构造目标函数，运用拉格明日乘数法导出一种改进的灰色关联分析法。结合齐齐哈尔市某地4眼井的水质评价说明了该方法的应用，得到与用其它方法评价一致的结果。该方法数学推导严谨，科学合理，分辨率高，可靠性强。Abstract: to counter the lacks of the grey related method,to select the objectivefunction accondng to extended generalized weighted distance,and advanced grey related method isdedheed by using Lagrange's method. The application of this method was introduced through tliewater quality evaIuation of 4 holes inQQiqihaer city.The results obtained are consistent with theresults by other methods.
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