Mining Engineers' Handbook, Volume 2Robert Peele, John Adams Church J. Wiley & sons, Incorporated, 1941 |
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Halaman 18-8
... method for traversing under such conditions that does not permit compensation of instrumental errors so far as possible . Deflection traverse . The vernier being set at 0 ° , sight the inverted telescope at the back station with the ...
... method for traversing under such conditions that does not permit compensation of instrumental errors so far as possible . Deflection traverse . The vernier being set at 0 ° , sight the inverted telescope at the back station with the ...
Halaman 30-13
... method gives best results , though the nails method may be used ( Art 5 ) . With proper equipment , the scorification method is the simplest for lead ores . Nickel and cobalt ores , carrying appreciable amounts of gold and silver , are ...
... method gives best results , though the nails method may be used ( Art 5 ) . With proper equipment , the scorification method is the simplest for lead ores . Nickel and cobalt ores , carrying appreciable amounts of gold and silver , are ...
Halaman 45-60
... methods 10-491 Peak load , elec 42-38 Pearce - Low method for tin 30-18 Pearlite 2-04 Peat 2-29 Pechelbron oil mining Pecos mine , drift round raise round 10-114 Pedometer 17-02 44–24 10-99 Peg method of level adjustment 17-08 mine ...
... methods 10-491 Peak load , elec 42-38 Pearce - Low method for tin 30-18 Pearlite 2-04 Peat 2-29 Pechelbron oil mining Pecos mine , drift round raise round 10-114 Pedometer 17-02 44–24 10-99 Peg method of level adjustment 17-08 mine ...
Isi
COMPRESSED | 15 |
Applications Definitions Data | 15-44 |
Accident Compensation Pensions | 16-1 |
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 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 material 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