在统计分类法中，采用方差分析法分析管孔的面积变异系数。
In statistics classification, analysis of variance were applied to analyze the coefficient of variation of area of pores.
本文采用IMF的事实分类法，对1999 - 2003年国际汇率体系变迁进行统计分析，没有发现支持两极化假说的证据。
Using the IMF DE facto classification, this paper analyses the evolution of exchange rate regimes during 1999-2003 and finds no support for the popular bipolar view.
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