Polygon overlay is spatial operation in which a first thematic layer containing polygons is superimposed onto another to form a new thematic layer with new polygons.
几何图形叠盖是包含几何图形的第一主题图层被叠加形成新主题图层以新的几何图形的空间操作。
Polygon overlay is a spatial operation in which a first thematic layer containing polygons is superimposed onto another to form a new thematic layer with new polygon.
多边形叠合是一种空间操作，在第一个包含多边形的主题层中叠上另一个由多边形组成的主题层。
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