Method and Technology of Green Coal Mining
English


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About The Book

<p>residual coal pillar; gob-side entry driving; extra-thick coal seam; coal pillar size; surrounding rock control; directional long borehole; long-distance; heading face; permeability evolution; gas pressure evolution; gas drainage; pre-splitting blasting; roof cutting technology; hydraulic fracturing; no-coal pillar mining; thick hard roof; pressure relief technology; sandstone; deformation behavior; permeability evolution; mining stress path</p>
Piracy-free
Piracy-free
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Assured Quality
Secure Transactions
Secure Transactions
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Fast Delivery
Sustainably Printed
Sustainably Printed
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