首先，利用GARCH模型求得权益收益的条件标准差；
First, get the equity return's conditional standard volatility by GARCH model;
接著利用统计的方法，建立出波包标准差以及各外加条件的模型。
And try to establish a model of standard deviation of wave packet by using statistical methods.
欧巴代II（85系列）无色显示包衣增重标准差低于相同工艺条件下的标准无色羟丙甲纤维素基薄膜包衣。
In this study, Opadry II (85 series) Clear was shown to have lower coating weight gain standard deviations than a standard clear hypromellose based film coating.
在现代运输条件下，要求轨道管理同时兼顾峰值和标准差。
With modern transportation condition, track management must consider maximum and standard deviation of irregularity.
条件模拟方法计算出的水头、流速和水动力弥散系数的标准差要小于非条件模拟的结果；
The variability of the pressure head, velocity and hydrodynamic dispersion coefficient obtained from conditional simulation are smaller than those obtained from unconditional simulation.
即使高风速条件下，抖振位移标准差也有可能高于平均值；
The buffeting displacement standard deviation might be higher than the mean value, even for higher wind velocity.
本文论述了复杂的技术和外界环境条件下，三种费用估算方法涉及到的随机不确定性及其表征参数——标准差。
This paper discusses uncertainties of three kinds of cost estimation methods and their describing parameters-standard deviation in complicated environment of technology and outside.
提供了一个在数学期望值不相等条件下进行概率分析的新方法，该方法采用所谓标准差系数作为分析指标。
Using the standard deviation coefficient as analysis target, the author provides a new probability analysis method, in case the mathematical expectations are different.
提供了一个在数学期望值不相等条件下进行概率分析的新方法，该方法采用所谓标准差系数作为分析指标。
Using the standard deviation coefficient as analysis target, the author provides a new probability analysis method, in case the mathematical expectations are different.
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