The paper applies the strong function of space orientation and attribute analysis of GIS, and overlays the main gestation genes of the flood.
本文利用地理信息系统（GIS）技术的空间定位功能和属性分析功能，将洪灾的主要孕灾因子复合叠加，结果表示。
It is characterized by the function of the attribute information storage of items, automatic data retrieval, intelligent operating analysis and intuitionistic virtual graphic display.
具有独特项目属性信息存贮，自动查询，智能运算分析，直观仿真图示等功能。
It is characterized by the function of attribute information storage of items, automatic data query, intelligent operating analysis and visual graphic display.
具有项目属性信息存贮、自动查询、智能运算分析、直观仿真图示等功能。
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