国家空间数据基础设施

着重叙述了目前城市GIS的建设与应用和国家空间数据基础设施的建设与应用，指出建设数字城市和UGIS的框架体系结构，在GIS建设中的重要的作用。

This paper emphatically narrated the building and application of present urban GIS and national spatial data infrastructure . This paper pointed out the building of digital city and UGIS frame system structure was vital role in GIS building .

国家空间数据基础设施

National Spatial Data Infrastructure

空间数据交换标准是国家空间数据基础设施的一个重要组成部分，也是目前实现空间数据共享的一个必要手段。

Geo-spatial data transfer standard is not only an important part of National Spatial Data Infrastructure ( NSDI ) but an necessary means for spatial data sharing as well .

随着国家空间数据基础设施的建立，大地测量信息将成为一种公共资源，大地测量数据共享将变得尤为重要。

With the development of national spatial data infrastructure , geodetic information will be a kind of common resource , and geodetic data sharing will become more and more important .

在各行各业实行数字化、信息化的浪潮中，我国的数字国土工程作为国家空间数据基础设施的一部分也得到了长足的发展。

In the tide of digitalization and information in all trades , our country 's " Digital Territory " project has received considerable development as a part of national spatial data infrastructure .

以1：1万比例尺为主的县（市）级土地利用数据库建设是国家空间数据基础设施建设的重要环节，在这一大背景下本文对土地利用现状数据库建设的方法及更新手段进行了研究。

It is an important part of national spatial data foundation to construct 1:10000 land utilize database . Under the great background , this paper clarified the method to build land utilize database and the / measure to update it .

在此分析、论述了建设中国数字地球的必要性和可能性，并就加强国家空间数据基础设施建设及实现数字中国提出了若干建议。

This paper analyses and deals with the essentiality and the possibility to construct China digital earth . In the meantime , some suggestions to strengthen the construction of basis installation of national space data and to achieve digital China are put forward .

国家大地测量数据库是国家空间数据基础设施（NSDI）&国家空间数据基础数据库的重要组成部分。

National Geodetic Survey Database is an important part of National Spatial Data Infrastructure ( NSDI ) - National Spatial Data Infrastructure database .

由此推论了某些观点，指出哪些国家将是下一代国家空间数据基础设施的候选人。

Based on the above statements , some countries have been selected as the candidates for establishing next generation infrastructures for national spatial data .