传统的洪水频率分析都是假定洪水资料取自某一已知分布函数的总体。
According to the traditional flood frequency analysis, flood data are assumed to have been taken from a known distribution function as a whole.
对于在特征空间中寻找特征模式，一般是通过假设分布函数一次性对样本空间进行分离的方法去试图获得特征空间的样本总体分布规律。
In order to find out the feature patterns from multi-dimension space, the conventional approach is to separate feature space by assuming the distributed functions of all features in one time.
对于在特征空间中寻找特征模式，一般是通过假设分布函数一次性对样本空间进行分离的方法去试图获得特征空间的样本总体分布规律。
In order to find out the feature patterns from multi-dimension space, the conventional approach is to separate feature space by assuming the distributed functions of all features in one time.
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