常見例句雙語例句Objective To improve quota-sampling precision and reproducibility of the impedance blood rheometer.目的:改進電阻抗血液流變儀定量進樣的精確度和重復性。Method Purpose sampling combined with quota sampling were adopted, and the data of nursing quality assessment standards of 17 hospitals in China were obtained and analyzed.結果各醫(yī)院評價標準所涉及的評價指標不盡相同,同一指標的評價標準條目設立、權重設定差異均較大,且尚無統(tǒng)一的計分方法。Methods Through quota sampling, a total of 1280 migrants were recruited from 6 different venues where migrants were most likely employed to administer a face-to-face anonymous interview.方法采用配額抽樣的方法,在市場、飯店、賓館等流動人口較為集中的6類工作場所里招募外來務工人員1280名,進行匿名問卷調(diào)查。權威例句Using old-style quota sampling Gallup's polls had shown a Labour lead of 37 points.ECONOMIST: Why the polls got it wrong last timeAll the polling firms selected their samples using a technique known as quota sampling.ECONOMIST: Why the polls got it wrong last timeThe difference this new method can make was dramatically illustrated in January when Gallup made its switch from quota sampling.ECONOMIST: Why the polls got it wrong last time 返回 quota sampling