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Google圖書搜尋
The Effectiveness of Different-size Rock Dusts in Preventing Coal-dust Explosions in Mines
George Samuel Rice
Harold Putnam Greenwald
Henry C. Howarth
出版
Department of Commerce, Bureau of Mines
, 1930
URL
http://books.google.com.hk/books?id=xv_gBpZYxV8C&hl=&source=gbs_api
EBook
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