英语词汇“multiple openings”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	multiple openings
释义	multiple openings multiple openings [′məl·tə·pəl ′ō·pə·niŋz] (mining engineering) Any series of underground openings separated by rib pillars or connected at frequent intervals to form a system of rooms and pillars.
随便看	ccfpl ccfpp ccfps c-cfr ccfr ccfra ccfrc ccfrf ccfrpm ccfrr ccfrs ccfs ccfsa ccfsc ccfsf ccfsi ccfss ccfsse ccfsspd ccfst ccft ccfta ccftb ccftc ccftf

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