“choroplethic method”的概念、定义、翻译、参考文献-科学参考

单词	choroplethic method
释义	choroplethic method Encyclopedia 工学专题地图内容表示方法释 choroplethic method等值区域法以一定区划为单位，对各区划内专题要素的数量平均值进行分级，然后运用面状符号色彩或图案（晕线）表示该专题要素在不同区域内的数量差别的方法。此法因常用色级表示，又称色级统计图法。
随便看	orientation cohomology class orientation correction orientation cultivation orientation effect orientation fluctuation orientation force orientation homology class orientation manifold orientation of a manifold orientation of a simplex orientation of a space orientation of a surface orientation of reference ellipsoid orientation parameter orientation phase orientation polarization orientation-preserving orientation-preserving automorphism orientation-preserving isomorphism orientation-preserving mapping orientation quantization orientation reaction orientation-reversing orientation-reversing chain orientation-reversing loop

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