[矿业]
inclined high seam mining method
... 倾斜厚矿体采矿法 inclined thick orebody mining method 倾斜厚煤层采煤法 inclined high seam mining method 倾斜节理 cutters ...
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短语
倾斜特厚煤层采煤法
[矿业]
inclined superhigh seam mining method
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