通过对国家标准物质土壤有效态的测试，结果与标准值基本一致，测得值都在标准值的不确定度范围内。
After testing the national standard substance (GBW 07416) of soil available composition, the analytical results are nearly in accord with standard values.
不确定度是与测量结果相联的参数，表征合理地赋于被测量值的分散性。标准值的不确定度是对真值存在范围的估计和推断。
The uncertainty is a parameter associated with the result of a measurement, which characterizes the dispersion of the values that could reasonably be attributed to the measurement.
本文简要介绍了汽车底盘测功机的测量原理，以及对其进行检测的方法，并通过分析得出由检定装置给出的标准值的不确定度。
In this paper, we want to introduce the measurement principle of automotive chassis dynamometers and a testing method. And we can educe the uncertainty of the standard value by analyzing.
通过对酸解烃标准样品的多次分析数据的统计处理，确定了该标准样品的值和不确定度。
Through quite a few statistic analyses of analytical data on the acidolysis hydrocarbon standard sample, the authors determined its value and uncertainty.
分析了重量法制备氮中多元标准混合气体定值不确定度的来源，其定值的扩展不确定度小于3％。
The source of the certification uncertainty of multi-component calibration gases in nitrogen was analyzed. The uncertainty is less than 3%.
注：表中不确定度以定值标准偏差和样品的不均匀方差表示。
Note: Uncertainty in table is showed by the square minus of the standard deviation from laboratory average data and sample unhomogeneity.
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%.
其标准值和不确定度是由多家实验室用容量法、离子色谱法等进行分析测定，并经数理统计处理后确定的。
The certified value and uncertainty were based on the analytical results of eight labs by VOL, IC method etc.
其标准值和不确定度是由多家实验室用分光光度法和液相色谱法进行分析测定，并经数理统计处理后确定的。
The certified value and uncertainty were based on the analytical results of eight labs by SP and HPLC method.
其标准值和不确定度是由多家实验室用分光光度法和液相色谱法进行分析测定，并经数理统计处理后确定的。
The certified value and uncertainty were based on the analytical results of eight labs by SP and HPLC method.
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