(JJF) 扩展不确定度（expanded uncertainty）：确定测量结果区间的量，合理赋予被测量之值分布的大部分可望含于此区间。
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...扩展不确定度 [gap=566]Key words:Energy meter detector, Uncertainty measurement, Composite uncertainty, Expansive uncertainty ...
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砷、硒含量测量的扩展不确定度均为5.28%。
The expanded uncertainly of measurement for Se, as were both of 5.28%.
电化学电极气体氧分析器计量标准的扩展不确定度小于5%。
The uncertainty of measurement for the standard of measurement of electrochemical electrode gas oxygen analyzer is less than 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%.
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