The theory and model of interoperation, putting forward by this paper in a condition of having not standard in GIS, provide one method and approach to different GIS systems of digital city fields.
本文提出的互操作理论及模型，在GIS还不十分规范的情况下，对“数字城市”建设中的不同GIS系统实现互操作提供了一种途径和方法。
The geographic information systems (GIS), as a future-oriented "Digital Earth" key technology, has provided a proven method to address these issues.
而作为面向未来的“数字地球”关键技术的地理信息系统(GIS)，为解决上述问题提供了一种行之有效的方法。
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