Then Six Sigma quality theory is a statistically based quality management system. Its essence is to continuously reduce variance and pursue higher quality.
而六西格玛理论是一套建立在统计学基础上的质量管理系统模式，它的本质是不断减少偏差，持续追求高品质。
Then Six Sigma quality theory is a statistically based quality management system. Its essence is to continuously reduce variance and pursue higher quality.
而六西格玛理论是一套建立在统计学基础上的质量管理系统模式，它的本质是不断减少偏差，持续追求高品质。
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