在谈到有关开源和全球环境现象时，很难让人联想到地理数据集和GIS应用程序领域。
The realm of geographical data sets and GIS applications may seem a bit difficult to understand in a world that talks about open source and global environmental phenomena.
列表定义多边形，并可以相互层叠，来表示方向完全相反但描述相同地理区域的数据集，从而形成数据详细的地图。
The lists define polygons and can be layered on top of each other to map data sets of completely different origins while describing the same geographical area to form extremely data-rich maps.
已经发布的互联数据集覆盖领域广泛，有地理信息、人口资料信息、在线社区、科学出版物、音乐等。
These published data sets cover a wide range of areas such as geographic information, demographic data and information, online communities, scientific publications, and music.
通过空间数据集和目标操作日志表创造性地将地理对象的空间信息和时态信息分开，又通过目标标识和版本号联系在一起。
Spatial information and temporal information of geo-objects are split by spatial dataset and objects operation log, and they are integrated with object identifications and versions.
创建和管理个人地理数据库，多用户地理数据库和功能集。
Create and manage personal geodatabases, multiuser geodatabases, and feature datasets.
在许多应用中，需要对大量的数据集进行分析，而这些数据通常是地理上分布的大规模的数据，并且复杂度不断在增加。
In many applications it is necessary to perform analysis of very large data sets. The data are often large, geographically distributed and its complexity is increasing.
车辆定位监控系统集gps定位技术、GIS地理信息系统技术、数据库技术及通信技术于一体，是智能交通系统的重要组成部分。
Integrated with GPS, GIS and the technology of database and communication, vehicle monitoring system is one of the most important part of ITS.
车辆定位监控系统集gps定位技术、GIS地理信息系统技术、数据库技术及通信技术于一体，是智能交通系统的重要组成部分。
Integrated with GPS, GIS and the technology of database and communication, vehicle monitoring system is one of the most important part of ITS.
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