The spatial information database of land reclamation is a temporal database due to the change of land resource with the coal mining.
沉陷地土地资源信息随着煤炭的开采而不断变化，所以，矿区土地复垦空间数据库是一个时态数据库。
The application of the model can realize editing, updating and spatial-temporal querying of the place name database.
应用这个模型实现了对地名数据库的编辑更新及时空查询操作。
Based on the precipitation database collected from 1950 to 1985 of 98 rainfall stations in Chongqing, we analyzed the precipitation features of Chongqing through temporal and spatial distribution.
根据对重庆市98个雨量站从1950年至1985年的降水资料的分析，初步探讨了重庆市年降水量的时空分布规律。
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