Besides, the system function expansion is strong. If necessary, spatial analysis functions in GIS can also be introduced to this system in further study.
而且系统功能扩展能力较强，地理信息系统具有的空间分析等功能，都可以根据需要在后续研究中引入到本系统中。
Spatial overlay is one of the most important spatial analysis functions in the Geographic Information System, and its efficiency will directly influence the whole function of GIS.
空间叠加是GIS系统必不可少的空间分析功能之一，空间叠加分析效率的高低直接影响到GIS整体功能的发挥。
The strong spatial analysis functions make it possible that GIS can be used in the research and assessment of RIS, and can solve many problems presented in routine research methods.
GIS对空间数据的管理及其强大的空间分析功能决定了它能用于水库诱发地震研究，并有效地解决常规水库地震预测方法中的许多问题。
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