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单词 opening up by inclined shafts
释义

opening up by inclined shafts

  • 网络斜井开拓
1.
斜井开拓
-... ... opening up by blindshaft 暗井开拓 opening up by inclined shafts 斜井开拓 opening up by tunnels 平硐开拓 ...
casiovincent.blog.163.com

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更新时间:2025/6/3 8:33:41