“multiple openings”的概念、定义、翻译、参考文献-科学参考

单词	multiple openings
释义	multiple openings [`mǝl·tǝ·pǝl `ō·pǝ·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	pouncing paper pound poundal poundal-foot pound-foot pound force pound mass pound per square foot pound per square inch Pound-Rebka experiment pounds per square inch absolute pounds per square inch differential pounds per square inch gage Poupart's ligament pour depressant pouring pouring rope pour-plate culture pour point pour-point depressant pour-point inhibitor pour reversion pour stability Pourtalesiidae pour test

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