The result shows that measurement standard error reaches minimum 0.027 for most milk sample and satisfies the national criterion of protein detection when dilution ratio ranges from 6.2 to 7.4.

结果表明，对于大多数的牛乳样品，当其稀释倍率在6.2至7.4范围内时，测量标准偏差达到最小值0.027，满足蛋白质检测国家标准。

youdao

Through using the method of logical analysis, measurement, experiment and questionnaire, this paper makes study on national standard of basketball equipment and court of middle and primary schools.

采用逻辑分析、测量、实验与问卷调查法，对初中、小学篮球器材和场地规格的国家标准进行研究。

youdao

The differences between the measurement of coke shatter strength in the current national Standard and that in the International Standard have been studied.

研究了现行国标中焦炭落下强度测定方法与国际标准的差异问题。

youdao