Deal with customer complain, abnormal case FA, minimize process and measurement variation.

处理客户投诉，异常失效分析和改善，减小过程和测量变异。

youdao

youdao

Sadly, the popularity of this approach does not trump its invalidity - there are just too many sources of variation to let you trust a single measurement.

遗憾的是，这种方法虽然很流行，但是很不可靠。有许多因素会导致结果的偏差，所以无法信任单一度量值的精确性。

youdao

While distance from Africa can explain as much as 85% of the genetic diversity of populations, a similar distance measurement can explain only 19% of the variation in phonemic diversity.

WSJ: Study Points to a Single, Original Language for All Humans