The effect of seam dip on the application of the longwall top coal caving method for inclined thick seams

Tiêu đề: The effect of seam dip on the application of the longwall top coal caving method for inclined thick seams

Có sẵn trong thư viện: 2013 - 2013 (1 luận án)

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• The effect of seam dip on the application of the longwall top coal caving method for inclined thick seams 2013