英语词汇“underlay shaft”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	underlay shaft
释义	underlay shaft underlay shaft [¦ən·dər¦lā ‚shaft] (mining engineering) A shaft sunk in the footwall and following the dip of a vein. Also known as footwall shaft; underlier.
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