steep-inclined coal seam的意思|示意
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急倾斜煤层
steep-inclined coal seam的网络常见释义
急倾斜煤层 ... 急倾斜煤层 steep seam 急倾斜煤层 steep-inclined coal seam 急倾斜特厚煤层 steep-inclined and extremely thick coal seam ...
steep-inclined coal seam相关短语
1、 steep-inclined thick coal seam 急倾斜厚煤层
2、 steep-inclined super-thick coal seam 急倾斜持厚煤层