使用空间数据类型，开发人员可以表示使用坐标系统的数据，比如形状、线条或是地图上的点。
The Spatial data type allows developers to represent data that USES a system of coordinates, such as shapes, lines, or points on a map.
地理信息系统软件主要应用于地理信息系统部门，所用到的坐标系与地图投影密切相关。
The GIS software is mainly applied to the department of Geography Information system. Its coordinate system is closely related with map projection.
GIS中的空间参照系统是GIS平台中的重要组成部分，内容包括各种坐标系统的转换和地图投影，故也称为投影变换系统。
As an important part of GIS platform, spatial reference system includes coordinate transformation and map projection, also named as map projection transformation system.
1954年北京坐标系和1980西安坐标系是我国目前地图资料中存在的二种坐标系统。
The Beijing coordinate system in 1954 and the Xi 'an coordinate system in 1980 are two kinds of coordinate systems kept in the map document presently in China.
GPS数据采用WGS- 84坐标系，而电子地图往往采用北京54坐标系，因而，如何将WGS - 84坐标转换为北京54坐标成为系统必须解决的一个关键问题。
GPS data adopts WGS-84 Coordinate, while the digital map adopts Beijing 54 Coordinate. So it is a key to solve that translate the WGS-84 Coordinate to Beijing 54 Coordinate.
GPS数据采用WGS- 84坐标系，而电子地图往往采用北京54坐标系，因而，如何将WGS - 84坐标转换为北京54坐标成为系统必须解决的一个关键问题。
GPS data adopts WGS-84 Coordinate, while the digital map adopts Beijing 54 Coordinate. So it is a key to solve that translate the WGS-84 Coordinate to Beijing 54 Coordinate.
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