在缺乏全员民事登记的情况下，可以采用跟踪一小部分人口的抽样登记的办法。

Sample registration, which involves tracking a small part of the population, can also be used in the absence of full civil registration.

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上海市统计局开展的一项人口抽样调查显示，上海未婚人口数量正在迅速上升，尤其是未婚女性数量。

The population sampling survey, conducted by Shanghai Municipal Statistics Bureau, reveals a rapid rise in the size of the unmarried population, especially women.

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格罗夫斯已经承诺在2010年的人口普查中不使用抽样的方法。

Mr Groves has pledged not to use sampling in 2010.

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