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.
应用推荐