词汇	fraxinus mariesii
释义	fraxinus mariesii n.庐山梣
随便看	variance enlargement model variance error variance estimate variance estimation variance estimator variance estimators variance evaluation variance expands factor variance factor variance filter variance for stratified sampling variance from budget variance from planned cost of material variance from planned cost of materials variance from standard method variance function variance gamma pricing variance gradient variance heterogeneity variance homogeneous measurement variance in variance in calculation variance inflation factor variance in income variance in price