作为把质量管理理念引入日本的两位美国先驱者之一，约瑟夫•朱兰在其统计工作的基础上，发现了用于改善质量的方法西格玛。
This is an approach to quality improvement based on the statistical work of Joseph Juran, one of two American pioneers of quality management in Japan.
重点介绍了在提高方法的灵敏度和改善选择性方面所做的工作。
The work for enhancing the sensitivity and improving selectivity of the process are cited.
经现场实践应用表明，采用该方法设计出的工作辊、支持辊辊型曲线适应性好，并大大地改善了板凸度和轧辊磨损情况。
The application results show that work roll and backup roll designed with this method have good adaptability, and the plate crown and roll consumption have been reduced greatly.
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