One confounding factor is that the late Cretaceous was also a period of great volcanic activity.
但后白垩纪火山运动频繁，这一点很容易混淆视听。
One possible confounding factor, however, is that the children were not tested for lead exposure when they were toddlers.
然而一个可能的混淆的因素是孩子没有被测试是否在刚学走路时就处在污染环境中。
The Six Sigma Black Belt will understand the idea of confounding and be able to identify which two factor interactions are confounded with the significant main effects.
六西格玛黑带应了解混淆的概念，并能识别出哪两个因子的交互作用与重要影响相混淆。
The Six Sigma Black Belt will understand the idea of confounding and be able to identify which two factor interactions are confounded with the significant main effects.
六西格玛黑带应了解混淆的概念，并能识别出哪两个因子的交互作用与重要影响相混淆。
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