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分层抽样在森林资源二类调查、木材消耗量调查、农村社会经济调查当中都经常应用。本文基于CASIO-4500P机型研制其应用程序,供有关人员参考。
Stratified sampling in the second category of forest resources survey, timber consumption survey, rural social and economic surveys are often applied. This article is based on the CASIO-4500P model developed its application for reference by the relevant personnel.