At present, the modes of the integration of multi-source spatial data are data format exchange, data interoperation, and directly data access.
目前多源空间数据集成的模式有数据格式转换、数据互操作和直接数据访问。
And then carry on deep research to Multi-source Spatial Data Translation model in semantic level and explain in detail to the definition, principle, organization of the model.
进而对基于语义异构空间数据转换模型进行了深入地研究，从模型的定义、原理、组织构成进行了详细地阐述。
However, with the blowup of multi-source and large region covering ocean remote sensing data, there are still many difficulties in fast and automatic extraction of spatial information of ocean eddies.
但面对日益增长的多源、大面积海洋遥感数据，在快速自动化提取海洋涡旋的空间信息方面还存在很多难题。
GIS played an important role in this field by its good function of multi-source data integration, spatial analysis and decision-aiding.
GIS提供的多源数据集成能力、强大的空间分析能力和辅助决策能力在公共安全的预警预报、监测、灾情评估中发挥了重大作用。
Geographic information system (GIS) is an important tool for the study of coastal erosion, its Multi-source data fusion and spatial analysis play an important role to research coastal erosion hazard.
GIS具有多源的数据融合和强大的空间分析功能等特点，是海岸侵蚀灾害研究的重要手段和工具。
Geographic information system (GIS) is an important tool for the study of coastal erosion, its Multi-source data fusion and spatial analysis play an important role to research coastal erosion hazard.
GIS具有多源的数据融合和强大的空间分析功能等特点，是海岸侵蚀灾害研究的重要手段和工具。
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