英语词汇“proportional sample”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	proportional sample
释义	proportional sample prəˈpɔ:ʃənəlˈsɑ:mpl 基本英英近义反义比例抽样器 Noun: the population is divided into strata and a random sample is taken from each stratum近义词 stratified sample分层取样representative sample代表性样品
随便看	social thesis social thinking Social thinking on juvenile delinquency social thinking science social thought social thoughts social thought trend social tie social ties social-ties social tie support social time social time bomb social tmdertakings social topography social total capital social total energy consumption social total welfare social tourism social trading social tradition social tragedy social training social tramsformation social tranformation