名词
中文翻译：冲积层
同义词：
['alluvial', 'alluvium']
例句：
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1.The alluvial deposits are rich in minerals and can be used for building materials.
冲积层富含矿物质，可用于建筑材料。
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2.The alluvial deposits have been studied for their potential as a source of energy.
冲积层已被研究作为能源的潜在来源。
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3. The alluvial deposits were formed by the slow flow of water over the land surface.
冲积层是由水流缓慢流过陆地表面形成的。