“transition from underground mining to surface mining”的概念、定义、翻译、参考文献-科学参考

单词	transition from underground mining to surface mining
释义	transition from underground mining to surface mining Encyclopedia 工学露天与地下联合开采释 transition from underground mining to surface mining地下转露天开采前期用地下开采矿床下部矿体，后期过渡到用露天开采矿床上部矿体的开采方式。
随便看	grinder grinder safety grinding grinding and classification circuit design grinding and polishing machine grinding and shaping grinding apparatus grinding-classification circuit grinding concentration grinding cycle load grinding dynamics grinding efficiency grinding equipment grinding fineness grinding machine grinding machining center grinding medium grinding mills grinding of cement grinding process Grinding the Tea grinding wheel safety grinding wheel wear grindstone grind with water

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