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1.The cartographic information theory is a complex field that requires expertise in both geography and computer science.
制图信息理论是一个复杂的领域，需要地理学和计算机科学方面的专业知识。
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2.This theory has been instrumental in improving the accuracy of map production.
这一理论在提高地图制作的准确性方面起到了关键作用。
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3.In this study, we applied the cartographic information theory to analyze the spatial distribution of population density.
在本研究中，我们应用了制图信息理论来分析人口密度的空间分布。