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

单词	hard-rock driller
释义	hard-rock driller hard-rock driller [′härd ¦räk ′dril·ər] (mining engineering) A worker who operates a drill in a mine where the rocks are generally igneous or metamorphosed and considered hard, such as rocks in which coal and salt are generally found.
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