Based on sample survey data and dass status materials, this artide systemiatically examines household division in the villages of south Hebei.

依据抽样调查资料和阶级成分档案资料，冀南农村的分家行为与传统具有很强的延续性。

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This paper made empirical research on the relationship between the labor migration and urban unemployment in China according to the sample survey data of 1% population in 2005.

本文通过2005年1%人口抽样调查数据对我国劳动力流动与城市失业之间的关系进行了经验研究。

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For this study, the investigators gathered data from the British household Panel Survey - a yearly questionnaire of a nationally representative sample of UK households.

这个研究中数据来源于英国家庭状况调查，它是一个对有代表性的英国家庭样本的年度调查。

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The analysis, based on a sample survey of voters last year, is viewed as the best source of government data on turnout by race and ethnicity.

NPR: A Census First: Black Voter Turnout Passes Whites