“two-stage sampling”的概念、定义、翻译、参考文献-科学参考

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	exercise-induced gastrointestinal problems exercise-induced hypertension exercise-induced immunosuppression exercise in specific environments exercise intervention Exercise Is Medicine exercise light effect exercise motivation exercise planning exercise prescription exercise prescription for patients with chronic diseases exercise psychology exercise rehabilitation exercise rehabilitation for patients with cardiorespiratory diseases exercise rehabilitation for patients with common lesions of nervous system exercise rehabilitation for patients with orthopedic/musculoskeletal diseases exercise，sports and health exergic exergonic exergonic reaction Exergy exergy exertional dyspnea exertional hyperthermia exertional rhabdomyolysis

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