By the analysis of airborne gravity measurement data, this paper constructs a space covariance function model with spatial characteristics.
本文通过对航空重力测量数据的分析，建立起具有空间相关特性的空间协方差函数模型。
After studying the analysis and comparison of the realization techniques of spatial database system and spatial data mining systems, we propose a development model of spatial data mining system.
在对空间数据库系统实现技术及空间数据挖掘系统等进行比较分析的基础上，提出了一种空间数据挖掘系统的实现模式。
The data model which is applicable to GIS of coalmine are put forward based on analysis of the characteristic of coalmine spatial information.
本文在分析煤矿空间信息特点的基础上，提出了实用于煤矿的地理信息系统数据模型。
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