In the fourth part, based on the former description and analysis, the author attempt to buildup a index system of village habitants' QOL.
第四部分，在上述描述和分析的基础上，作者进行了农村居民生活质量指标体系构建的尝试。
2
The index seeks to buildup a picture of the prevalence of poverty based on the fraction of households who lack certain basic things.
该指标试图弄清楚当前贫困现象的遍及程度，缺少必需品的人占多大的比例。
3
Borehole curvature is one of significant index to evaluate Angle build-up capacity and wellbore quality, is very important to realize safety, speedily and efficiently drilling.