“surface and underground mining at the same time”的概念、定义、翻译、参考文献-科学参考

单词	surface and underground mining at the same time
释义	surface and underground mining at the same time Encyclopedia 工学露天与地下联合开采释 surface and underground mining at the same time露天与地下同时开采矿床从开始开采直至相当长的时期内，露天开采与地下开采同时进行的开采方式。
随便看	yutang Yutangba selenium deposit Yutangchun Yutan township dragon Yutian Yu Tianbai Yutian (Keriya) Xian Yutian script Yu Tianwei Yu Tianxi Yutian Xian yutingzi (house with fountain-like installation on the top) Yu Tiɑnren Yutou Dao Yu. V. Linnik Yu. V. Linnik (1915—1972) Yu Wanchun Yuwangcheng Yuwangcheng Yizhi Yuwangtai Qu Yu Wanzeng Yu Weihan Yu Weimin Yuwen Huaji Yuwen Kai

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