The winds are hot and dry as they pass over Namibia’s coastal plain, where they are prone to stir fine sediments.

吹过纳米比亚海岸平原的信风已经变得又热又干，这使得它们很容易扬起细小的沙尘。

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In such fine sediments, cohesion is an important factor in determining critical conditions.

在这样的细沙中，粘性是确定临界条件的一个重要因素。

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Dawukou alluvial fan, located at the north end of the study area, has fine sediments, big fan area, flat slope and typical morphology.

而且本地区冲积扇在发育上也存在着较大的差异：北段的大武口冲积扇物质组成较细，坡度较平缓，面积较大。

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The rocks contain very fine-grained sediments but are cut through with pale veins of what could be calcium sulphate.

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The John Klein slabs contain very fine-grained sediments but are cut through with pale veins of what could be calcium sulphate.

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