It offers all kinds of up-to-date spatial data sources for the whole urban, and it offers uniform and standard spatial data infrastructure for the layout building management and service of urban.
它为整个城市提供各种现势性的空间数据信息源，为城市规划、建设、管理和服务提供统一的、标准的空间数据基础框架。
According to the feature of spatial data sources, a method to express capability of the spatial data sources is presented, including exported schema, query capability and transformation capability.
根据空间数据源的特点给出一种表示空间数据源能力信息的方法，包括导出模式、查询能力和转换能力。
The error sources, types and elements affecting the quality of the spatial soil conservation data has been analyzed, by the view of the error and quality of spatial data.
根据空间数据误差理论，对空间数据误差来源和种类、空间数据的质量要素等进行地了研究。
The error sources, types and the elements affecting the quality of the spatial soil conservation data has been analyzed, by the view of the error and quality of spatial data.
根据空间数据误差理论，对空间数据误差来源和种类、空间数据的质量要素等进行了研究。
The advantage of GIS technology in combining multi sources geoscience information is used in the important aspect of regional geological survey field spatial data collection.
利用GIS技术综合多源地学空间信息，应用于区域地质调查的重要方面——野外空间数据采集。
Remote sensing supplies continuous information sources to environment surveying and monitoring in a large region. GIS is a powerful tool to management and analysis spatial data.
遥感技术为大范围的环境调查和监测提供了时间和空间上连续覆盖的信息源，GIS技术为空间数据的管理和分析提供了有力的工具。
A new spatial database based on region and object data model is designed. The database could dispose many data sources. It provides application interfaces and has some flexibility.
设计了一种基于区域和基于对象数据模型的新型空间数据库，该数据库具有处理多种数据源的能力，提供应用接口，具有较高的灵活性。
Study application methods of the multi-sources data in map production, including sort of sources, data collection, and data processing, in order to updating the map and spatial data in one platform.
对地图生产中的多源数据利用作了较为全面的研究，包括资料分类、数据获取方法和数据处理方法。把各种资料数据统一在一个应用平台上，保证了地图和空间数据的现势性；
During the course of updating of spatial data, we need to use kinds of data sources, which may lead to duplicate records.
在空间数据的更新过程中，需要利用多种数据源对现有数据进行更新，这样可能会导致在获得的空间数据中出现重复记录。
During the course of updating of spatial data, we need to use kinds of data sources, which may lead to duplicate records.
在空间数据的更新过程中，需要利用多种数据源对现有数据进行更新，这样可能会导致在获得的空间数据中出现重复记录。
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