全称扩展测量不确定度 expanded measurement uncertainty
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%.
对T型电阻网络反馈扩展微弱电流测量原理和测量参数估计方法进行了分析，阐述了该仪器的测量不确定度。
The principle of feedback extension in t resistance network and the estimation method of measuring parameter are analyzed. The indeterminate of the instrument is discussed.
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%.
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