The present paper dealt with the population dynamics of Myzus persicae(Sulzer)and its natural enemies using fuzzy grouping analysis.
本文应用模糊聚类方法研究了烟蚜及其天敌的种群动态。
The fuzzy grouping analysis that is adopted to study the ordination of communities for the first time proved to be more effective than the other two.
模糊聚类分析为作者首次用于群落的排序，结果表明比另外两种方法的排序效果更好。
Model rules on LOD, grades of damage, texture and grouping are constituted, and the fuzzy synthetically evaluation method is used to choose the level of discrete LOD.
制定模型的层次细节、损伤分级、纹理和分组规则，并采用模糊综合评判方法确定离散LOD等级。
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