该扩展不确定是相对不确定度吗？
实验结果的相对不确定度小于3%。
The relative uncertainty of the experimental results may be controlled within 3%.
还叙述了配制组分的浓度相对不确定度的计算及其意义。
And then, introduced the calculation and its meaning of the concentration uncertainty of preparation component.
不同元素准确度引起的相对不确定度在总不确定度中所占比例不同。
The ratio of relative uncertainty caused by accuracy to the global relative uncertainty was different with different levels and elements.
阐述相分率测量原理和流速测量原理，分析多相流量计测量相对不确定度。
The operating principles of velocity and phase fractions measurements were discussed. Its uncertainties were analyzed in detail.
分段统计精密度引起的相对不确定度，剥离出准确度引起的相对不确定度。
The section relative uncertainty caused by precision was analyzed and relative uncertainty caused by accuracy based on the error transfer formula was isolated.
从实验结果看，测定值的相对标准偏差小于0 7%，相对不确定度小于0 5%。
Under experiment condition, RSD is less than 0.7%, reference uncertainty is less than 0.5%.
计算得到该方法测量结果的相对标准扩展不确定度为4.4%。
The relative standard expanded uncertainty of measured results by using said method was 4.4%.
结果：该法的平均回收率为91%，相对测量不确定度小于5 %。
Results: The ave rage recovery was 91% and relative uncertainty of measurement was below 5%.
采用相对合成标准不确定度的评估方法，对用开尔文法测量铜合金导电率结果的不确定度进行了评估。
We adopt the method of the relative composite standard uncertainty for estimating the uncertainty of copper alloy electric-conductivity measured by Kelvin method.
建立了一种以相对误差的标准偏差统计不确定度的评估方法。
A method for evaluation of uncertainty was established with standard deviation of relative error.
以TCD检测器为例进行分析，对气相色谱仪检定结果的不确定度进行评定，相对扩展不确定度为5%。
The detector TCD was taken as example, the relative expanded uncertainty of verification of chromatography was 5%.
以TCD检测器为例进行分析，对气相色谱仪检定结果的不确定度进行评定，相对扩展不确定度为5%。
The detector TCD was taken as example, the relative expanded uncertainty of verification of chromatography was 5%.
应用推荐