JJF1001-2011《通用计量术语及定义》第5.18条明确给出了测量不确定度的定义:根据所用到的信息,表征赋予被测量量值分散性的非负参数。同时给出包含区间的定义:基于可获得的信息确定的包含被测量一组值的区间,被测量值以一定概率落在该区间内。第5.29条给出了包含概率的定义:在规定的包含区间内包含被测量的一组值的概率。综上可知,包含区间是被测量测得的量值,以一定的包含概率可能落在的区间。测量不确定度是说明 JJF 1001-2011 Definitions of Measurement Uncertainty, Section 5.18, General Measurement Terms and Definitions, specifies non-negative parameters that give dispersion to the measured quantity based on the information used. At the same time, the definition of inclusion interval is given: the interval containing a set of values ​​of the measured object, which is determined based on the available information, and the measured value falls within the interval with a certain probability. Clause 5.29 gives the definition of inclusion probability: the probability of containing a set of values ​​to be measured within the specified inclusion interval. In summary, the inclusion interval is the measured value measured, with a certain probability of inclusion may fall in the interval. Measurement uncertainty is the explanation