“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	geographies of health geographies of health care geographies of memory geographies of nutrition geographies of telemedicine geographies of traditional medicine Geographos Geography geography geography base map data acquisition geography conception of ethnicity geography cone geography history geography of agricultural sector geography of animal husbandry geography of chinese oversea geography of crime geography of crop farming geography of cyberspace geography of dialects geography of drylands geography of fishery geography of folklore geography of forestry geography of goods flow

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。