[der] 隧道开
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。
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掘隧道。
tunnel drive, drive, excavation, tunnelling, tunnel driving
[der](
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) (矿脉上面
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)地表层。覆
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。
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掘。发掘。废料。废
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。垃圾。剥离工作。净化室。净化空间。
overburden, spoil, excavated material, excavation, strippings, waste material, overlay, barren rock, cap rock
[die]
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掘。发掘。开凿。文
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发掘工作。
excavation, dig, digging, burrowing
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