英语词汇“hard-rock mine”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	hard-rock mine
释义	hard-rock mine hard-rock mine [′härd ¦räk ′mīn] (mining engineering) A mine located in hard rock, especially a mine difficult to drill, blast, and square up.
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