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Dust Produced by Drilling when Water is Sprayed on the Outside of the Drill Steel
John A. Johnson
Wing G. Agnew
出版
U.S. Department of the Interior, Bureau of Mines
, 1939
URL
http://books.google.com.hk/books?id=zsbkyugfAP0C&hl=&source=gbs_api
EBook
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