normal distribution function meaning in English

正态分布函数

There are various quantities which need to be computed repeatedly in the analysis , and these are based on normal distribution functions
一些变量在分析中必须一遍遍的计算，这些都建立在正态分布的基础上。
In accordance with the damage data of gas pipelines collected in the chi - chi earthquake , the study assumes that the empirical fragility curves can be expressed in the form of two - parameter normal distribution functions
文中配合集集地震时天然气管线的灾损资料，假设易损曲线为一个具两参数的常态分布函数。