The recovery of sulfur was 95 ~ 102% and relative standard deviation 3 ~ 5%.
平行测定结果的相对标准偏差为3 ~ 5%,加标回收率为95 ~ 102%。
The relative standard expanded uncertainty of measured results by using said method was 4.4%.
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%。
Then the relative standard difference is estimated indirectly from the research of the examples.
然后,通过实例的考查,间接地估算了样本总体的相对标准差。
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