名词
中文翻译：地下分层
同义词：
['subsurface stratigraphy', 'subsurface sedimentation']
例句：
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1. The geologist used a borehole to map the underground stratification of the rock.
地质学家使用钻孔来绘制岩石的地下分层。
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2. The construction crew was working on the project by excavating and stratifying the soil.
建筑队在挖掘和分层土壤的过程中进行该项目的工作。
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3. The research focused on understanding the underground stratification patterns in the region.
研究专注于理解该地区地下分层模式。