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proportional stratified sampling
释义
人口学词汇手册
proportional stratified sampling
成比例分层抽样
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rural-urban dichotomy
rural-urban dichotomy
rural-urban differential
rural-urban fringe
rural-urban fringe
rural-urban imbalance
rural-urban integration
rural-urban interdependence
rural-urban interdependence
rural urbanization
rural urbanization
rural urbanization
rural-urban migration
rural-urban relation
rural-urban relation
rural water supply
rural water supply
rural wire broadcasting network
rurban area
Ru--Ru (ruthenium)
ruscus
ruse
rush
rush
rush
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