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

单词	random group sampling
释义	random group sampling Encyclopedia 农学整群随机抽样法释 random group sampling整群随机抽样法将所调查的对象或总体按一定规则划分成群，随机抽取若干个整群作为总体的样本，对抽取的整群中每一个抽样单元都进行调查的方法。
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