倾角为45°的岩层
词语: 倾角为45°的岩层
解释: half-edge seam
词典: 地质专业汉英词典
倾角为45°的岩层 相关解释
half-edge seam 〔名词〕陡倾斜煤层,倾角为45°的岩层
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