名词短语
中文翻译：风化壳
同义词：
['weathered crust', 'weathered layer']
例句：
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1. The rocky coastlineis covered in a thick crust of weathering.
岩石海岸线覆盖着厚厚的风化壳。
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2. The study of the crust ofweathering is crucial for understanding the geological history of the region.
研究风化壳对于理解该地区的地质历史至关重要。
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3.The weathering process has left behind acrust of minerals that can be seen onthe surface.
风化过程留下了一层矿物质，可以在表面看到。