常見例句雙語例句A survey was conducted among 701 freshmen in one college by cluster random sampling.采用整群隨機抽樣方法，在某大學抽取701名大學生作為調查對象。Methods Cluster random sampling method was employed in this survey, then 2000 families amounting of 7218 people were selected.方法采用整群隨機抽樣方法，抽取城鄉(xiāng)居民2000戶，共計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 .方法根據全國第四次結核病流行病學抽樣調查方案，采用分層整群隨機抽樣方法抽取調查點，然后根據調查結果進行分析。 返回 cluster random sampling