名词
中文翻译：地下矿层
同义词：
['subsurface strata', 'subterranean strata']
例句：
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1.The geologists have been excavating the underhand stopes in search of valuable minerals.
地质学家一直在挖掘地下矿层寻找有价值的矿物质。
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2. The mine is located beneath the surface, and the underhand stopes contain a wealth of resources.
矿井位于地表之下，地下矿层蕴藏着丰富的资源。
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3. The mining company has been exploring the underhand stopes for decades, hoping to find new deposits.
矿业公司已经探索了地下矿层几十年，希望找到新的矿藏。