coal seam意思是：煤层
例句
The mining company is drilling deep into the earth to access the coal seam and extract the valuable resource.
采矿公司正在深入地下挖掘, 以到达煤层并开采这一有价值的资源.
本页标题: coal seam是什么意思？ 翻译, 中文, 解释, 意思, 例句
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