... 多主题调查体系；综合调查体系 multi-stratum one-unit panel survey : 多层-单位固定样本调查 multi-stage sample : 多阶样本 ..
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... 数据取样仪 data sampling unit 多阶段取样 multi-stage sample 数据取样系统 sampled-data system ...
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Multi-stage Random Sample 随机多层样本
Large-scale sample surveys are always undertaken with stratified multi-stage sampling.
大型抽样调查总是采用分层多阶段抽样。
Methods the study sample was got by multi-stage randomized sampling, and the injury information of the inhabitants aged over 18 years in Guangdong province was collected by questionnaire.
方法按分层整群抽样的方法抽取样本，并通过问卷调查的方式收集有关广东省18岁以上居民的伤害信息。
A multi-station rotary sample stage is disclosed.
一种多工位旋转样品台。
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