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A Study of Summer Air Conditioning with Water Sprays to Prevent Roof Falls at the Beech Bottom Coal Mine, West Virginia
Edward L. FishLouis A. TurnbullAlbert Louis Toenges
出版U.S. Department of the Interior, Bureau of Mines, 1944
URLhttp://books.google.com.hk/books?id=jFmN2PRHoT0C&hl=&source=gbs_api
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