“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	navigation satellite operation control navigation signal anti-jamming navigation signal measuring and processing navigation signal multipath mitigation navigation sonar Navigation Standard navigation star navigation state perception navigation station navigation station positioning navigation structure Navigation Technology Satellite navigation terminal navigation terminal equipment navigation tunnel navigation uploading receiver navigation warning navigation waterway navigator Navoi Na vsiakogo mudretsa dovol’no prostoty navy navy cloth Navy Navigation Satellite System Navy Precision Optical Interferometer

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