The function of field data collection, spatial data management and information distribution are integrated in the platform which involves almost aspects of the process of land survey.
平台将外业数据采集、空间数据管理和信息发布等功能集成为一体，基本涵盖了土地调查监测的全过程。
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 third chapter studied the graphic information significant of land use patch and land use spatial pattern based on the land use data in Changling County.
第三章基于长岭县的土地利用数据，研究土地利用斑块和土地利用空间格局的图形信息涵义。
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