以灰色聚类为基础，提出了灰色模糊聚类分析法，并将其应用于土壤环境质量评价中。
Based on grey collection, grey collection analysis method is pointed out and applied to assessment of soil environmental quality.
以迁安市为例，对迁安市的干旱程度进行综合评价，结果表明灰色模糊聚类分析法在区域干旱评价中是适用的。
Qian 'an city arid degree is evaluated, it indicates that the analytic method of the gray-fuzzy in the region arid evaluation is suitable.
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