Mining Engineers' Handbook, Volume 2Robert Peele, John Adams Church J. Wiley & sons, Incorporated, 1941 |
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Halaman 17-49
... vert photo- graphs , the optical axis of camera is held as nearly vert as possible at instant of exposure . In oblique photographs , the camera axis is purposely inclined to the vert and may or may not include the horizon . In composite ...
... vert photo- graphs , the optical axis of camera is held as nearly vert as possible at instant of exposure . In oblique photographs , the camera axis is purposely inclined to the vert and may or may not include the horizon . In composite ...
Halaman 18-12
... Vert angles can now be read directly . Horiz angles are corrected , or corrections may be avoided , in precisely the same manner as with an auxiliary telescope . Eccentric telescope . Several American manufacturers until recently made ...
... Vert angles can now be read directly . Horiz angles are corrected , or corrections may be avoided , in precisely the same manner as with an auxiliary telescope . Eccentric telescope . Several American manufacturers until recently made ...
Halaman 18-26
... vert and horiz planes . C - D then gives the bearing , and C " -D the slope and length of the closing line . In this example , note that 3 different vert planes are involved , all containing point D. Survey of glory - holes at Fresnillo ...
... vert and horiz planes . C - D then gives the bearing , and C " -D the slope and length of the closing line . In this example , note that 3 different vert planes are involved , all containing point D. Survey of glory - holes at Fresnillo ...
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