“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	winding of a knot winding of a torus winding problem winding rate winding shaping winding test of raw silk wind instrument wind itching windkessel model windkessel vessel windlass wind lift water irrigation wind load wind loading wind loading deformation observation wind load resistance performance wind measurement system of windfarm wind-mill windmill windmill curve windmill graph windmilling windmill palm wind of four fossae window

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