名词
中文翻译：沉积层
同义词：
['stratified', 'sedimentary']
例句：
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1. The diluvial layer is a layer of sediment that has been deposited over time.
沉积层是随着时间的推移沉积下来的一层沉积物。
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2. The geologist studied the stratigraphy of the area to understand the diluvial history.
地质学家研究了该地区的地层学，以了解沉积历史。
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3. The diluvial layer is crucial for understanding the evolution of the landscape.
沉积层对于理解地貌演变至关重要。