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单词
two-stage sampling
释义
two-stage sampling
Encyclopedia
农学
抽样调查
释
two-stage sampling
二阶抽样
设总体由个初级单元组成,每个初级单元又由若干次级单元组成,在总体中按一定方法抽取若干初级单元,对每个被抽中的初级单元再抽取若干次级单元进行调查的方法。
Mathematics
two-stage sampling
二次抽样
随便看
deranged cursive script
derangement
derangement problem
Der Angriff
deravitve operator
Der Blaue Reiter
derby
de-reaction
dereddening
dereflection
Deregulatory Takings and the Regulatory Contract:the Competitive Transformation of Network Industries in the United States
de re interpretation
Derek Curtis Bok
Derek Curtis Bok's thought on higher education
Derek Harold Richard Barton
Derek Jacobi
Derek John de Solla Price
Derek Parfit
Derek Thomas Whiteside
Derek Walcott
Derek William Austin
De re metallica
derepression
Derestuy Cemetery
dereverberation
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