参照值 meaning in English

reference value

Non - destructive testing - industrial radiographic film - control of film processing by means of reference values
无损试验.工业用x射线照相胶片.用参照值控制胶片工艺
Based on the hypothesis of " reference value " for each pollutant , the parameters in the formulae of the pollution harm rate are universal ones independent of the characters of the pollutants when the relative values of the pollutant concentration substitute their monitoring values
摘要在选择了各污染物的“参照值”情况下，用污染物的实测浓度相对值代替水质污染损害率公式中的浓度监测值，公式中的参数可认为与污染物的特性无关。