SPC if deploying precisely and correctly is a very powerful tool of quality control and continuous improvement too as today SPC philosophy no longer serves as monitoring tools alone.
如果能够准确实施SPC，它将是一个质量控制和持续改善的强有力的工具，因为如今SPC的哲学已经不再只是一个监管工具了。
This article presents the concept and steps of SPC, indicates the keypoints and lists the items to evaluate the SPC results.
本文对SPC的定义，实施的步骤作了论述，指出了其中的要点，并给出了评价SPC成果的指标。
Traditional SPC theory is based on a fundamental assumption that the process data are normal. However, in many conditions the process data are non-normal which makes traditional SPC theory invalid.
传统的统计过程控制理论是基于正态分布这个基本假设的，而在实际生产过程中大量非正态过程传统SPC技术会失效。
Methods The donor spleen cells (SPC) or T cell depleted donor SPC were injected into the recipients which had been treated by"cells followed by CP system", after which skin grafting was performed.
方法在“细胞后环磷酰胺”方法的基础上输注供体脾细胞或去除了T细胞的供体脾细胞，然后进行皮肤移植。观察皮肤存活情况并探讨耐受形成机制。
Methods The donor spleen cells (SPC) or T cell depleted donor SPC were injected into the recipients which had been treated by"cells followed by CP system", after which skin grafting was performed.
方法在“细胞后环磷酰胺”方法的基础上输注供体脾细胞或去除了T细胞的供体脾细胞，然后进行皮肤移植。观察皮肤存活情况并探讨耐受形成机制。
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