常見(jiàn)例句雙語(yǔ)例句A survey was conducted among 701 freshmen in one college by cluster random sampling.採(cǎi)用整群隨機(jī)抽樣方法,在某大學(xué)抽取701名大學(xué)生作爲(wèi)調(diào)查對(duì)象。Methods Cluster random sampling method was employed in this survey, then 2000 families amounting of 7218 people were selected.方法採(cǎi)用整群隨機(jī)抽樣方法,抽取城鄕居民2000戶,共計(jì)7218人。www.cmed.org.cnMethods According with the methods of the forth epidemiologic sampling survey for tuberculosis in our country, the method of stratified cluster random sampling was use in this survey .方法根據(jù)全國(guó)第四次結(jié)核病流行病學(xué)抽樣調(diào)查方案,採(cǎi)用分層整群隨機(jī)抽樣方法抽取調(diào)查點(diǎn),然後根據(jù)調(diào)查結(jié)果進(jìn)行分析。 返回 cluster random sampling