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In a number of industries, and information the wave of China's "Digital Land" project as a national spatial data infrastructure has been part of a significant development. In this context, this paper first systematic introduction of Digital Earth, Digital Land related concepts, introduced the "3S" (RS, GIS, GPS) technology, the development trends and their integration in digital territory in the state. Finally, the 3S technology in the digital territory of the issues raised in a number of views and 3S technology for the development of the prospect.±¾ÌûÀ´Ô´£º3dµØ´ø
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