“露天转地下开采”的概念、定义、翻译、参考文献-科学参考

单词	露天转地下开采
释义	露天转地下开采 Encyclopedia 工学露天与地下联合开采释 transition from surface mining to underground mining露天转地下开采前期用露天采矿法开采矿床上部矿体，然后过渡到用地下采矿法开采矿床下部矿体的开采方式。
随便看	[Thom's] catastrophe theory Thomsen's heat Thomsen, Vilhelm Ludwig Peter Thomson Thomson atomic model Thomson coefficient Thomson crater Thomson cross-section Thomson effect thomson effect Thomson electromotive force Thomson heat Thomson model of the atom Thomson problem Thomson Reuters Thomson scattering Thomson scattering coefficient Thomson scattering cross-section Thomson scattering diagnostics Thomson scattering tomography scanning Thomson, Sir George Paget Thomson, Sir Joseph John Thomson theorem Thom space Thom spectrum

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