标准测定

The comparison of the method and the national standard is done.The results show that the precision and accuracy ...

结果表明：该方法的精密度及准确度均能达到要求，对水样的测定与标准方法对比具有很高的准确度。

After analyzing five samples of the nickel based alloy, with different content of element Co, it was found that the intensity ratio of the analysis spectrum, Co393.60nm, and the comparison spectrum, Fe 393.03nm, is of strong linear and positive relationship with the content of the element Co.

使用Co393.60nm谱线为分析谱线，Fe 393.03nm谱线为比较谱线，对5种不同Co元素含量的镍基高温合金标准样品进行了分析测定。

The traditional methods used to confect the standard solution in the elementary determining of the glass samples containing sodium and calcium by atomic absorption spectrum are very fussy .

传统原子吸收法测定钠钙玻璃中各元素的标准溶液的配制方法既繁琐且不容易消除干扰。

The method has been used to determine copper in crude salt, cornmeal and cosmetic samples. The recovery range was 98%-103%.

此方法已用于粗盐、麦片和化妆品中痕量铜的测定，标准回收率98%~103%。

The scope of this standard provides for the determination of corrugated board thickness.

范围 本标准规定了瓦楞纸板厚度的测定方法。

The results showed that the correlation coefficient of cross validation, the RMSECV, and the correlation coefficient of external validation are 0.904, 0.988%, and 0.987, respectively.

结果表明，用NIRS 法得到的预测值与用凯氏定氮法得到的测定值间的交叉验证决定系数R2cv为0.904，交叉检验标准误差RMSECV为0.988，外部验证的相关系数为0.987。

The author determines the fatigue property in super long life region of the cruciform joint of 16MnR base material of one ...

作者利用瑞士RUMAL电磁高频疲劳试验机测定16MnR板材十字单面焊接接头在超长寿命区间的疲劳性能，并采用标准法和Dixon-Mood法对测得的试验数据进行处理，整理出十字单面焊接接头在超长寿命区间的疲劳极限，这些结果可以为焊接结构的可靠性设计及服务寿命估计提供试验数据基础。

The applications of fluorine-ion selective electrode method were done successfully in two aluminium plants.(2) The performance requests of alumina in aluminium production were concluded, and the mechanism of alumina dissolution in molten cryolite was discussed.

详细研究了氟离子选择电极法测定分子比，确定了计算公式和分析条件，并建立标准的操作分析规程，选定效果良好的分析设备，编制了方便直观的分子比计算程序，为该法的工业应用创造了条件。

The gold content in white karat gold alloy samples is determined by the cupellation method, and the effect on the testing results of gold content with the test portion weight of the proof gold and samples, the variety of cupels, the additive amount of copper and silver is studied. At the same time, the accuracy of the results determined by cupellation method is also validated by using ICP.

运用火试金法测定含Pd白色K金合金首饰的含Au量，考察了降低标准Au与样品的称样量、灰皿的种类、加入适量的Cu与Ag对其含Au量分析结果的影响，并应用ICP验证了其结果的准确性。

The EAG responses of the male black cutworm moth, Agrotis ypsilon to standard chemicals of sex pheromone, i.e., Z7-12: Ac, Z9-14: Ac, Z11-16: Ac, Z5-10: Ac and Z8-12: Ac, were measured.

利用触角电位记录技术，测定了小地老虎Agrotis ypsilon雄蛾对性信息素标准化合物Z7-12：Ac、Z9-14：Ac、Z11-16：Ac、Z5-10：Ac和Z8-12：Ac的EAG反应。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。