“Quota Sampling”的概念、定义、翻译、参考文献-科学参考

单词	Quota Sampling
释义	Quota Sampling Encyclopedia 理学【核心概念】释 Quota Sampling配额抽样调查人员将调查总体按一定标志分类或分层，确定各类（层）单位的样本数额，在配额内任意抽选样本单元的抽样方法。又称定额抽样。
随便看	law of probability distribution law of propagation of errors law of proportional part law of public opinion law of quadratic reciprocity law of radioactive decay law of rare events law of rational indice law of rational indices law of reaction law of reciprocity law of rectilinear propagation law of reductio ad absurdum law of reflection law of refraction Law of Regarding the Strengthening of Ties Between School and Life and the Further Development of the USSR Public Education System Law of Regulations of Important Industries law of resistance law of retail trade gravitation law of securities regulation law of segregation law of series law of similarity law of similarity transformation law of similitude

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