英语词汇“露天开采”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	露天开采
释义	露天开采 lù tiān kāi cǎi开采近地面矿物采用的一种方法。先把矿体上的覆盖层剥离掉,暴露矿层,然后在露天下用电铲等机械采掘,不需要凿井open-pit mining； opencast mining
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