Based on the metallogenetic environment and the special landform of this area, high-precision magnetic surveying was performed along valleys and rolling ridges at random networks.

根据测区铜矿与基性岩体密切相关的特征，结合区内成矿地质环境和特殊的地形条件，沿沟谷和平缓山脊，采用自由网形式，进行了地面高精度磁测。

youdao

They're up to a kilometer long, but only a few meters wide, and they're scattered along the desert floor, in valleys between the dunes.

我们所看到的石灰岩层高达一千米，而宽却只有几米，沿着沙漠底部和沙丘间的山谷分布。

youdao

As the river carries you along, you'll pass through open plains and dense jungle valleys.

河流引你而下之时，你会经过开阔的平原和茂密的丛林山谷。

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The drive from K.L., which takes only about an hour, winds along beautiful verdant valleys as you make your way up to the green-swathed former hill station.

CNN: ASIANOW - TIME Asia | Travel Watch

Led by our guide, Tom Frode Johansen, we passed through valleys and over hills, along the border between Norway and Finland, and then across frozen lakes and uplands of unblemished white.

BBC: Threat to life on Arctic frontline