名词
中文翻译：冲积层
同义词：
['deposition', 'sedimentation']
例句：
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1.The erosion of the riverbed has caused a significant colluviation in the area.
河流侵蚀导致该地区发生了显著的沉积。
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2.The geologist is studying the colluviation patterns in the region.
地质学家正在研究该地区的沉积模式。
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3.The colluviation layer contains valuable minerals that can be extracted for industrial use.
沉积层中含有有价值的矿物，可用于工业提取。