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单词
proportional sampling
释义
proportional sampling
英?[pr??p?:??n?l ?s?mpl??]
美?[pr??p?r??n?l ?s?mpl??]
释义
比例采样,比例抽样,按比例抽样
英英释义
Noun
1. the population is divided into subpopulations (strata) and random samples are taken of each stratum
行业词典
化学
比例抽样???
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更新时间:2025/2/14 15:53:53