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用切线迭代法计算粉尘合格率的平均发展速度海南钢铁公司卫生防疫站（海南省昌江县，５７２７００）林凯平切线迭代法是一种计算平均发展速度的统计方法，本文应用此方法计算海南钢铁公司１９８８～１９９３年粉尘合格率的平均发展速度，以分析和评价近年来的粉尘监测情况...
Calculating the average passing rate of dust pass rate by tangential iteration method Hainan Iron and Steel Company Sanitation and Anti-Epidemic Station (Changjiang County, Hainan Province 572700) Lin Kai-ping The tangent iterative method is a statistical method to calculate the average growth rate. This method is used to calculate Hainan Iron and Steel Co. 1988 ~ 1993, the average passing rate of dust pass rate, in order to analyze and evaluate the status of dust monitoring in recent years ...