摘 要: 为了定量刻画石粉颗粒的圆度，应用 Fu zz y 集理论论述 了石粉圆度的Fuz zy 性，提出了“量化”其圆度的Fuz zy 模式 识别方法，并给出了实例。这种方法同样适用于定量刻画水 泥、硅粉、磷渣等颗粒的圆度。 

关键词:石粉;圆度; Fuzzy 集; Fuzzy 模式识别;加权平均

Abstract: To describe the stone powder′sroundness quantitatively, the fuzziness of itsroundness was discussed by the theory of Fuzzy set, and was depicted by Fuzzy pattern recognition quantitatively. In the end an example was given .The roundness of such particles as cement, silica fume, phosphorus, etc. can be determined by this method. 

Keywords: stone powder; roundness; Fuzzy set; Fuzzy pattern recognition; weighted mean