...atified one stage cluster sampling : 分层一级整群抽样,分层一阶整群抽样 stratified multi-stage sampling : 分层多级抽样,分层多阶抽样 stratified multi-stage cluster sampling : 分层多级整群抽样,分层多阶整群抽样 ..
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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 survey was conducted according to multi-stage stratified cluster sampling method.
方法:分阶段分层整群随机抽样调查。
RESEARCH METHODThe stratified multi-stage cluster random sampling method was used in the survey.
研究方法本研究采用分层整群随机抽样方法进行抽样。
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