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The above inferences being found substantially correct , the cost of equipment and scale of operations were ... on the operation of a small but practical preliminary plant , erected for the purpose ; and on practice in mining and ...
value in dollars per unit of metal in mill concentrate produced by either operation ; R = cost of new operation in dollars per ton of concentrate ( P ) produced thereby ; S. = cost in dollars per ton of milling H tons of original ore ...
Operation . In starting a single generator it may be necessary to CHARGE THE FIELD by exciting the shunt field separately for a moment to set up residual magnetism . To cause the machine to PICK UP , or generate voltage by self ...
Apa yang dikatakan orang - Tulis resensi
LibraryThing ReviewUlasan Pengguna - wackyvorlon - LibraryThing
I only have the second volume of this work, and I love it! Found at a local Value Village, it is filled with fascinating information. Details of all aspects of mine engineering, including compressed air, ventilation, and supporting structures. Baca ulasan lengkap
Conditions Methods in General
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