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Technique of coal mining and gas extraction without coal pillar in multi-seam with low permeability

✍ Scribed by Liang Yuan

Book ID: 107653284
Publisher: China Coal Society
Year: 2009
Tongue: English
Weight: 790 KB
Volume: 15
Category: Article
ISSN: 1006-9097
DOI: 10.1007/s12404-009-0202-x

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