Some areas, because of their soil texture, topographical position, or distance from rivers or groundwater, have virtually no water available to plants, whereas others do.
有些地区由于土质、地形位置或与河流或地下水的距离，几乎没有水分能提供给植物，而另一些地区则有。
2
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。
3
That was, and remains, a topographical fact. It was also, eventually, irrelevant.