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.
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.
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