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矿床露天开采
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矿床露天开采
Encyclopedia
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矿床露天开采
释
surface mining
矿床露天开采
用采矿装备从敞露的空间,按设计有序采出有用矿物的活动。
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Wuyuer He
Wuyueshanren Collection
Wuyue State
Wuyue's volunteer absorption into Northern Song
Wu Yugan
Wu Yuhua
Wu Yun
Wu Yunchu
Wu yunchu
Wu Yungen
Wu Yunrui
Wu Yunzhen
Wu Yuqin
Wu Yushan
Wu Yuzhang
Wu Zao
Wu Zeli
Wu Zelin
Wu Zengqi's Literary Criticism
Wu Zetian
Wu Zeyan
Wuzhai Xian
Wuzhang He
Wu Zhao
Wu Zhaodi
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