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本文以孔加工工序为例，运用数理统计方法，吸收 Ｉ Ｓ Ｏ ９０００ 国际标准的管理思想，介绍了改进工序质量的措施
Taking hole processing as an example, this paper uses the mathematical statistics method to absorb the management idea of I S O 9000 international standard and introduces the measures to improve the quality of the process