英语词汇combined surface and underground mining怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	combined surface and underground mining
释义	combined surface and underground mining 简明释义露天地下联合开采网络释义 1 ?露天地下联合开采 Combined surface and underground mining 露天地下联合开采 A film of mucus and bacteria on a tooth surface. 齿菌斑牙齿表面一层粘液和细菌的膜 . 短语 1 Surface and underground combined mining 露天地下联合开采双语例句 1 Tonglusha copper mine is a large mine with underground and surface combined mining system. 铜录山铜矿是露天与地下联合开采的大型铜矿。 2 This paper presents the concept of surface-underground combined mining method and discusses the difference from combined open-pit and underground mining. 阐述了露天-地下联合采矿法的概念及其与传统的露天-地下联合开采的区别。
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