Mining Engineers' Handbook, Volume 1Robert Peele, John Adams Church J. Wiley & sons, Incorporated, 1941 |
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Hasil 1-3 dari 82
Halaman 25-20
... Aver value Tri- angle Depth Prod- Value , uct , Hole No Aver ¢ per value No Ft Yd 3 cor cu yd holes by depth N 28 49 16.33 371 N 24 8.00 .... ... 30 26 8.66 370 Total & aver 32.99 10.99 .... N 29 26 8.66 7.0 60.26 .... 370 .... 12.8 ...
... Aver value Tri- angle Depth Prod- Value , uct , Hole No Aver ¢ per value No Ft Yd 3 cor cu yd holes by depth N 28 49 16.33 371 N 24 8.00 .... ... 30 26 8.66 370 Total & aver 32.99 10.99 .... N 29 26 8.66 7.0 60.26 .... 370 .... 12.8 ...
Halaman 27-21
... Aver shift , started , 8 a m ; aver shift , finished , 3 pm ; aver ton per car , 4.4 ; aver cars loaded per shift , 78 ; aver ton per shift , 343 . Aver time shift started , 8.10 a m ; aver time shift finished , 3 pm ; aver tons per car , ...
... Aver shift , started , 8 a m ; aver shift , finished , 3 pm ; aver ton per car , 4.4 ; aver cars loaded per shift , 78 ; aver ton per shift , 343 . Aver time shift started , 8.10 a m ; aver time shift finished , 3 pm ; aver tons per car , ...
Halaman 7
... aver size . The alternative extreme is to break down with as big steps in reduction ratio as size and strength of ... ( aver of 19 random cases , 83 % ) ; in the cases investigated , the product ranged from 4 % coarser than the set to 78 ...
... aver size . The alternative extreme is to break down with as big steps in reduction ratio as size and strength of ... ( aver of 19 random cases , 83 % ) ; in the cases investigated , the product ranged from 4 % coarser than the set to 78 ...
Isi
COMPRESSED AIR PRACTICE | 15-2 |
Appli | 15-15 |
Hydraulic Compressors | 15-22 |
Hak Cipta | |
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adjustment Aerial Tramway anthracite approx assay aver borax buckets Bur Mines capac carriers cars charge chute claim coal mines compressed compressor concentrate conveyer copper cost crusher crushing cu ft cupel cyanide deflection diam discharge distance drill dust elev engineer explosions feed filter fire firedamp gold hoisting horiz intercooler labor lamp less litharge loaders loading lode long ton machine mechanical metal method mill mineral motor operation pipe plant plate plumb-bob pump pyrite rock safety lamps sample screen shaft sheave short ton side silver sizes Sodium carbonate solution speed station steel stopes surface survey Table tape telescope temp tension tests timber tion tons Total towers track cable traction rope tramway Trans transit traverse underground usually vein vertical wire zinc