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微生物杀灭率为什么用对数值计算

更新时间: 2020-05-14 00:00:00     

微生物杀灭率,用百分率表示微生物数量减少的值.即被杀灭的微生物数量占原微生物数量的百分比。消毒前微生物数量为X0,消毒后微生物数量为Xt。则有微生物杀灭率=(X0-Xt)/X0*100%。微生物杀灭对数。当微生物的数量以对数值表示时,指消毒前后微生物减少的对数值。

关键词: 微生物 杀灭 为什么 数值 计算

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