This is different from the drill-down method because with zooming, the map is typically not rebuilt or reorganized for each level of magnification.

这种方法由于使用了缩放而不同于drill -down，对于每一个级别的放大操作，地图通常不用重建或重组。

youdao

This is different from the drill-down method because with zooming, the map is typically not rebuilt or reorganized for each level of magnification.

这种方法由于使用了缩放而不同于drill -down，对于每一个级别的放大操作，地图通常不用重建或重组。

youdao