英语词汇proportional sampling的读音、用法、中文释义、短语词组及例句-英汉双解词典

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	University of Wisconsin-Stout University of Wisconsin-Superior University of Wisconsin-Whitewater University of Wiss-consin solution university of wissconsin solution university of wolverhampton university of wyoming University Park university place university president university-press university press university professor university prospectus university publications university-rankings universityreferences universitys university-school university student university students university summer school university teacher university teaching hospital university textbook

英汉双解词典包含4367426条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。

proportional sampling