excerption

Market Analyses on Both Ends of " Power from West to East " from Northwest Region ( Excerption )

西北四省区西电东送两端市场研究报告（摘录）

Database excerpted from technological literature considered local characters and national technological requirement for ecological research in Loess Plateau , particularly stressed on data excerption about ecological factor , ecological process and ecological monitor .

数据的选编突出黄土高原生态研究的区域特色和重大科技需求，偏重生态因子、生态过程的试验、监测数据收编，同时注重数据的基础性、客观性、历史性特点。

In chapter four , I talked about how do we collect and collate the data used in sedan marketing system , studied the discrimination and the excerption of primary data and secondary data problem .

在第四章，主要是研究在轿车营销数据库系统中，所需数据的分类以及收集、整理等方面的内容，研究了初级数据、次级数据的甄别选录等问题。