“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	quantum steering quantum stochastic calculus quantum stochastic process quantum structural solar cell quantum structures quantum swap gate quantum system quantum system identification quantum teleportation quantum teleportation experiment of Earth Star quantum theory quantum theory of laser quantum thermalization quantum thermodynamics quantum tomography quantum trace distance quantum transition quantum transition state theory quantum transport quantum Trojan Horse quantum trojan horse quantum trojanhorse quantum tunnel effect quantum tunneling quantum tunneling effect

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