n.随机变量

Main components analysis method could eliminate the colinear among all the variate and reduce variate quantity. 该方法可消除各变量之间的共线性，减少变量的个数，结果直观；

Results: Alter variate transformation by clustering, the data was more similar to normal distribution. 结果：指标变量经聚类变换后，资料总体更接近于正态分布。

Distribution and transfusion of the geostatic pressure variate in company with mining space in underground mining. 地下开采中地压分布与转移随开采空间变动而变动,不同的开采顺序会带来不同的围岩稳定性。

The improved algorithm adopts adaptive crossover and mutation variate according to the adaptive function value. 改善的算法采用自适应的交叉和变异算子,让交叉和变异概率随适应函数值的变化而变化。

In this peper,the side clearance of gears is classified into two parts: stochastic variate and stochastic phasing side clearance. 将齿轮副侧隙划分为随机变量侧隙和随机相位侧隙两部分。