英语词汇stratified proportional sampling怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	stratified proportional sampling
释义	stratified proportional sampling 简明释义分层比例抽样网络释义 1 ?分层比例抽样分层比例抽样（Stratified Proportional Sampling）分层比例抽样是指按各个层的单位数量占调查总体单位数量的比例分配各层的样本数量的。在分层抽样中，采用分层比例抽样可. 短语 1 proportional stratified random sampling 分层随机抽样 2 Stratified sampling with proportional allocation 比例抽样法双语例句 1 Methods The survey of prevalence of dental caries in group aged 12 and 15 years in Anhui province was conducted using the non-proportional, stratified, cluster sampling method. 方法对安徽省四县市的12岁及15岁儿童的龋病发病情况进行抽样调查，采用分层、不等比、多阶段整群抽样的方法。
随便看	underpower under power underpowered under power protection under power protection underpower protection underpower relay under power relay underpower relay underpower underpraise underpreciated currency underpreciated value underpredict underpredicted underprediction under prediction underprepared underprepared underprescribe underprescription underpressing under pressing underpressure under pressure

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