The process family method for group statistical quality control was studied in this paper. The absolute process ability was proposed and the estimating principle was studied.

研究了面向成组统计质量控制的工序族基础理论，提出了绝对工序能力的概念，并给出了绝对工序能力的估计方法。

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RESULT Small dosages of Bee Venom Injection could increase the thymus quality and indexes, with statistical significance as compared with the control group(P<0.05).

结果蜂毒注射液小剂量组能提高胸腺质量及指数，与对照组比较有统计学意义（P<0.05）。

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