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Underground Gob Gas Drainage During Longwall Mining
Steven J. Schatzel
Gerald L. Finfinger
Joseph Cervik
出版
U.S. Department of the Interior, Bureau of Mines
, 1982
URL
http://books.google.com.hk/books?id=5TiAVhIhxZwC&hl=&source=gbs_api
EBook
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