英语词汇“proportional sampling”的中英文释义、用法、翻译及短语词组-英汉翻译词典

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???
随便看	Liebenberg's syndrome Liebenbergsvlei Liebenberg syndrome Liebenburg liebenerite liebenerite porphyry Liebengood Liebengrn Lieben Ralfe's test Lieben-Ralfe test Lieben-Ralfe test letter Lieben Ralfe test letter Lieben-Ralfe tests Lieben reaction Liebenscheid Lieben solution Lieben's reaction Liebenstein Lieben's test Lieben's test letter Lieben's test(reaction) Lieben's tests Lieben test Lieben test letter Liebenthal

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proportional sampling