时间是自然界无所不在的客观属性，所有信息都具有相应的时态属性。
Time is a ubiquitous and objective attribute in the nature, and all information has its corresponding temporal attributes.
文中还对模型的时态属性数据组织和空间对象的时态处理进行了描述。
Organization of temporal attribute data and temporal treatment of spatial object are described.
论文采用了面向对象的方法，探讨了数据标识方法和属性、空间图形时态数据组织。
The author of this paper introduces an object-oriented approach, analyses the data mark way and attributes, and spatial graphics temporal data organizing.
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