“double random sampling”的概念、定义、翻译、参考文献-科学参考

单词	double random sampling
释义	double random sampling Encyclopedia 农学双重随机抽样法释 double random sampling双重随机抽样法若调查重要性状y不易观察测定，甚至要破坏后才能测定，而试验又不容许将材料过多破坏，则可利用与调查重要性状密切相关便于测定的辅助性状x进行间接的抽样调查，按确定的相关关系从x的调查结果推算y的结果的方法。又称相关抽样法、复式抽样法、两相抽样法、双重抽样。
随便看	field of lines field of moduli field of moments field of natural coframes field of natural frames field of orthonormal coframes field of orthonormal frames field of p-adic numbers field of points field of prominences field of quotients field of rational expressions field of rational fractions field of rational functions field of rationality field of rational numbers field of rationals field of real numbers field of regard field of representatives field of scalars field of sets field of tangents field of transignification field of values

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