thematic mapper

例句：

1. 1. Thematic mapping is a technique used to analyze data based on themes.
   主题映射是一种用于根据主题分析数据的技术。
2. 2.The thematic map of the city shows the distribution of different types of buildings.
   城市的专题地图展示了不同类型建筑的分布情况。
3. 3.The thematic mapper was used to create a detailed map of the area's geology.
   使用专题映射器制作了该地区地质详细的地图。