【摘要】 给出了对数正态过程控制图限、过程能力指数和相应不合格品率计算方法，用一实例作了说明，所得结果与正态情况进行了比较。更多还原

【Abstract】 A method of control and evaluation is suggested for lognormal process.A numerial example is used for illustruction, and results are compared with ones of normal process.更多还原