This natural-color image of the lower reaches of Big Thompson Canyon illustrates two of the three natural factors that contributed to the flood's severity: steep terrain and sparse vegetation.

有利于形成这场汹涌洪水的自然因素有三条，这幅大汤普森峡谷下游的自然色图像展示出其中两者：陡峭的地形和稀疏的植被。

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In the foreground, a sharp image of Dione reveals the moon's "wispy" terrain-actually a system of braided canyons with bright walls.

前景中的土韦四，清晰图像，显示了这个卫星“稀疏”的地形，其实这是带着明亮屏障的纵横交错的峡谷系统。

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Once we have a map array, we iterate through each row and column, including an image for each terrain type.

在拥有地图数组后，我们将遍历每行和每列，包括每个地形类型的图像。

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The infrared part of the navigation system projects a green image of the terrain on to a screen in front of the pilot.

BBC: News | In Depth | Military Fact Files

Miners working the harsh terrain of the Atacama are part of the national self-image in a country that thinks of itself as having snatched prosperity from adversity, whether earthquakes or mining accidents.

ECONOMIST: Chile's mine rescue