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1.

図書
図書
1. Handbook of ore dressing
by Arthur F. Taggart ; contributors, Frederick E. Beach ... [et al.]
出版情報: New York : Wiley , London : Chapman & Hall, 1927
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2.

図書
図書
2. Crushers for stone and ore : their development, characteristics, and capabilities
by William T. W. Miller ; with an introduction by Robert Hadfield
出版情報: London : Mining Publications, 1935
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