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	a person of substance aperspectival apert- Apert aperta Apertados, Salto dos apertara apertas Apertase Apert-Crouzon disease Apert Crouzon disease Apert-Crouzon syndrome Apert disease apertement Apert Gallais syndrome Apert-Gallais syndrome Apert-Gallaris syndrome Apert Gallaris syndrome aperthura superior canaliculi tympanici apertif apertifs apertion apertions apertive aperto

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proportional sampling