From the perspective of usage value, the multiplication of archive information is mainly completed through frequent use, and benefit pricing is the key principle.
从使用价值的角度看，档案信息增值主要是在使用过程中的增值，效益定价是档案信息增值的关键原则。
According to probability principle of multiplication, the survival rate was the product of retention rate at certain period and survival rate at the previous period.
根据乘法概率法则，将某一年龄段的留存率与前一年龄段的生存率相乘可得该年龄段的生存率。
The paper proposes principle and method of multiplication curve matching.
介绍了多项式曲线拟合原理和方法。
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