时间标记在实体和元组级上，空间数据采用非拓扑数据模型。
Finally, the time is signed on entity and record, and non-topological data model is adopted to organize spatial data.
拓扑处理程序还提供了透视图和视图的数据模型，并将Eclipse活动关联到页面。
The topology handler also provides the data model for perspectives and views and associates Eclipse activities to the pages.
最后，数据模型还与拓扑处理程序连接起来，以将初始实例的值读取到数据模型中。
Last, the data model is coupled with the topology handler to read initial instance values into the data model.
目前，国际上对于作为时空数据模型概念和形式化基础的时空拓扑关系定义和描述还没有一个明确的阐述。
At present, there isn't a clear definition and description of spatiotemporal topological relationships which is a conceptual and formal basis of spatiotemporal data model.
从数据模型、数据实体、图形版本、网络拓扑、应用实现等方面阐述了红黑图机制的实现原理。
The realization principle of red and black mechanism is expounded with respect to the data model, data entity, graph version, network topology and application realization.
本文在分析GIS、CAD以及通用出版软件数据模型的基础上提出了面向地图出版的数据模型，具体包括几何对象模型、地图模型和拓扑模型以及它们的数据库存储方案。
The data model is drive from the analysis of the data model of GIS , CAD and DTP system. It include the geometry model, the map model, the topology model and their database schema.
从数据模型、数据实体、图形版本、网络拓扑、应用实现等方面阐述了红黑图机制的实现原理。
The realization principle of red and black mechanism is expounded with respect to the data model, data entity, graph version, networ.
从数据模型、数据实体、图形版本、网络拓扑、应用实现等方面阐述了红黑图机制的实现原理。
The realization principle of red and black mechanism is expounded with respect to the data model, data entity, graph version, networ.
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