英语词汇“multiple-entry system”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	multiple-entry system
释义	multiple-entry system multiple-entry system [′məl·tə·pəl ′en·trē ‚sis·təm] (mining engineering) A system of access or development openings generally in bituminous coal mines involving more than one pair of parallel entries, one for haulage and fresh-air intake and the other for return air.
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