分析了折合量因素分析法、直接对比分析法、分离后单位成本因素分析法等洗煤成本分析方法的不足。创造了一种新的分析方法——回收率因素分析法。并应用实例分析了该方法的适用性及合理性。 The deficiencies of coal washing cost analysis methods, such as the equivalent factor analysis method, the direct comparison analysis method and the unit cost factor analysis method, are analyzed. Created a new analytical method - recovery factor analysis. An example is given to analyze the applicability and rationality of this method.