事后质量抽查是世界各国在人口普查中普遍采用的用来评估人口普查登记质量的调查方法，是评价数据质量的重要手段之一。
As an important means of evaluation of data quality, post enumeration survey is widely applied in estimating data quality of census in many countries.
事后质量抽查是世界各国在人口普查中普遍采取的用来评估人口普查登记质量的调查方法，是评价数据质量的重要手段之一。
As an important means of data quality evaluation, The Post Enumeration Survey is widely applied in estimating data quality of census in many countries.
它透露出来的是西周的人口统计方法，由于人口数量在当时是国家的重要机密，通过间接的方法进行人口调查，在古代世界各国这是相当普遍的人口统计方法。
Since the number of population was the key secret of a state in old ages, It was a common practice to carry out a population survey by an indirect means.
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