制定依托港航监督所站进行全行业水路运输量统计的具体试点抽样调查方案。
We establish the trial sample survey strategy for whole industry waterway transport statistics, based on the Port and WaterwaySuperintendence units.
方法根据全国第四次结核病流行病学抽样调查方案,采用分层整群随机抽样方法抽取调查点,然后根据调查结果进行分析。
Methods According with the methods of the forth epidemiologic sampling survey for tuberculosis in our country, the method of stratified cluster random sampling was use in this survey.
本文对农村社会经济资料的抽样调查进行了定量分析 ,得出在水利规划中为了弥补全面搜集规划资料的困难 ,引进国际先进的抽样调查方案 ,可以取得较好的规划效果。
This paper represents an advanced sampling investigation approach introduced to solve the troubles collecting information for water planning, which has been applied in practice and got great effect.
方法遵照全国医疗照射调查的统一方案,采用分层抽样调查、普查和典型调查相结合。
Methods Complying with the united plan of medical survey nationwide, we combined sampling survey in various layers with general survey and typical survey.
对于需要通过抽样调查获得数据的统计指标,简要讨论抽取样本和构造估计量的方案。
As for those statistical indicators needed to use sample survey to attain data this article discusses program of drawing sample and constructing estimator simply.
方法按照卫生部1995、1997、1999和2002年的监测方案分别进行碘缺乏病相关指标抽样调查。
Methods Four monitoring indicators for IDD were carried out in 1995,1997,1999 and 2002 according to the planes of MOH.
方法按照卫生部1995、1997、1999和2002年的监测方案分别进行碘缺乏病相关指标抽样调查。
Methods Four monitoring indicators for IDD were carried out in 1995,1997,1999 and 2002 according to the planes of MOH.
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