DEA评价法 DEA appraisal method

dea评价模型 dea evaluation model

dea评价方法 dea data envelopment analysis method

DEA交叉评价 DEA cross-evaluation

DEA综合评价 DEA appraisal model

DEA有效性评价 DEA efficiency evaluation

DEA绩效评价方法 DEA estimate method

分级DEA有效评价 DEA grade effective evaluation