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coal seam in a sentence

Example sentences for coal seam

The change, he said, could have come from miners digging deeper into a coal seam.
It presents an equation for calculating the stress field in a coal seam adjacent to an excavation.
Thus, the nature of the coal seam itself is an important variable to be considered.
Surface coal mine operators frequently have to loosen the rock above the coal seam.
Contour mining allows for the partial removal of the coal seam at the elevation of the coal seam.
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