“overhand cut and fill”的概念、定义、翻译、参考文献-科学参考

单词	overhand cut and fill
释义	overhand cut and fill [`ō·vǝr´hand `kǝt ǝn `fil] ^{MINING ENGINEERING} A method of mining ore in which material removed from the roof of a drive drops through chutes to a lower drive, from which the material is removed.
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