抽样框 meaning in English

sampling frame

This paper presented a survey designed for the evaluation of the rural public over environment in tai lake basin for the first time
首次选取无锡市大浦镇14个行政村2 . 7万人为抽样框进行农村公众环境意识调查。
Before conducting regular sampling surveys , it is necessary to find out about the basic statistics units and their geographical distribution and to establish a scientific sampling framework in accordance with an approved plan for sampling surveys
进行经常性抽样调查，应当在调查前查明基本统计单位及其分布情况，按照经批准的抽样调查方案，建立科学的抽样框。