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。
The method of spatial data organization in traditional spatial information system cannot meet the requirement of mass spatial data storage.
传统的空间数据组织方式存在严重的不足，无法满足海量空间信息的存储与处理要求。
Then based on the basic concepts and features of spatial data, we analyze the organization and storage of spatial data by using the object-oriented holistic GIS data model.
然后根据空间数据的基本概念和特征，利用面向对象的整体数据模型，分析了空间数据的组织方法和存储方式。
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