单词：check sample
check sample的用法和样例：
例句
- Part of the investigation may involve retesting of a portion of the original sample.调查部分工作包括最初检验样品的再检验。
- It should never be assumed that the reason for an outlier is error in the testing procedure, rather than inherent variability in the sample being tested.决不能将出现逸出值的原因假定为检验操作的错误，而不认为被检验样品存在固有的差异。
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