UNFPA also helps countries compile reliable demographic data and carry out censuses.
人口基金还帮助各国汇编可靠的人口数据及开展人口普查.
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From 1998 on, NBS censuses all above - scale firms.
1998年开始,对规模以上工业实行全面调查.
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This paper discusses cluster sampling and stratified cluster sampling in continuous surveys with censuses.
本文讨论了连续调查中应用普查方法时的整群抽样和分层整群抽样.
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