1·And then, the contour plot will be the topographical map for this graph.
等高线就像是这幅图的地形图。
2·But most of topographical map database produced by survey department is only cartographic data, which is vector data structure, but cannot be imported into GIS directly to meet GIS using.
但测绘部门建立的地形图数据库多为单纯的制图数据，虽然与GIS数据一样是矢量结构，却无法直接输入GIS以满足应用需要。
3·The Paper studied and concluded some general ways of scanned topographical map Image pretreatment.
本文首先对地形图扫描图像预处理常用的方法进行了研究和总结。
4·In North Dakota, the researchers used Light Detection and Ranging equipment (LiDAR) to develop a three-dimensional topographical map of the area where Dakota died.
在北达科他州，研究人员利用光探测和测距设备(激光雷达)，以建立一个三维地形图的达科他死亡地区。