The construction of the direction changing section is a method of measuring a geological section applied commonly in areas with complex topographic and geological condition.

变方向折线剖面是在地形、地质情况较为复杂地区普遍采用的实测地质剖面方法。其地质剖面图目前一般用几何作图方法以投影法成图。

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Imitating this natural condition, Topographic green landforms were created in the shaded area.

荫蔽区域模仿自然界情形，创造了绿色地形。

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You need to be in reasonable condition and come equipped with the right shoes, gear and topographic maps or GPS. Trails can be narrow, steep and have icy patches, even in summer.

BBC: Getting fresh in Germany: Cycling, hiking and skiing