secondar造句

• (2 ) analysing domestic and oversea existing gis softaware about its merits and fl-aws; emphatically introduce the conspicuous merits of mapgis and supermap; co-mpare two secondary-system-development way : single-secondary-development, integrate d-secondar-development; discuss secondary-development course and predominance detail-ed based on component gis ( named comgis ); bring forward the requirement of dev-- elopment platform from data inputing, outputing, processing . analysing and capablity-c ost-ratio etc; confirmed supermap as the system platform according to the system characteristics, and summarize its component structure, function and speciality
  (2)分析了国内外现有gis软件的优缺点，着重介绍了mapgis和supermap两种gis软件的突出优点；比较了两种二次开发方式即单纯二次开发和集成二次开发；对集成二次开发中的基于组件式的二次开发过程和优势做了较详细阐述；针对mgis数据输入、处理分析和输出以及gis的性价比等方面提出了对gis开发平台的要求；根据系统的特点选择了支持组件式开发的supermap作为平台，对它的组件构成、组件功能和特点做了介绍。