“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。
随便看	total amount control of coal consumption total amount control of energy consumption total amount control of land source pollutant Total Amount Control of Pollutants total amount control of water pollution total amount discharge standard total amount of resources total amplitude total angular defect total angular momentum total angular momentum quantum number total-annular eclipse total area total area of urban parks total bacterial count total binding energy total-block total boundary operator total boundedness total brightness total character total characteristic total Chern character total Chern class total chromatic number

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