区域抽样

根据绘制的预测地图，以区域抽样法，按栅格总数5%比例进行随机抽样。

A grid sampling was performed on the prediction map and5 % grids were randomly sampled .

最新发布：上海二手房区域价格抽样报告！

The latest release : Regional Housing prices in Shanghai secondary sample report !

本文以河北唐山为调查区域，抽样调查分析了当地乡村生活与公共空间的分布特点。

Based on the survey in Tangshan , Hebei Province , the paper sampled and analyzed the rural life and the location features of the public spaces .

设计调查问卷，对课题研究中所关注的问题在一定区域内进行抽样调查，通过对问卷答案的汇总分析，总结出存在的问题。并以此为研究依据进行系统分析。

Through a sampling survey in certain areas by questionnaire , the paper sums up problems under a pooled analysis on the retrieved questionnaire which provides the basis for system analysis .

城市内部区域采取场所抽样调查法，分别从城市公园、居住区、企事业单位、城市道路等不同场所选取各自典型场所进行乡土植物调查。

Inside the city , the sample survey method is employed , which selects the typical places from city parks , residential areas , enterprises and institutions , urban roads respectively to carry out the survey of indigenous plants .