Mining Engineers' Handbook, Volume 2Robert Peele, John Adams Church J. Wiley & sons, Incorporated, 1941 |
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Halaman 16-2
... usually include a demand charge , either expressed , or made a part of the energy charge , based upon integrated peaks of 5-15 minutes ' duration , or on momentary peaks as created by hoists . Demand is usually expressed in k v a ...
... usually include a demand charge , either expressed , or made a part of the energy charge , based upon integrated peaks of 5-15 minutes ' duration , or on momentary peaks as created by hoists . Demand is usually expressed in k v a ...
Halaman 25-29
... usually the most tedious part of the examination it should be begun promptly ; though not until enough information has been gained ( preferably by inspecting the mineral exposures ) to determine if the cost of thorough sampling is ...
... usually the most tedious part of the examination it should be begun promptly ; though not until enough information has been gained ( preferably by inspecting the mineral exposures ) to determine if the cost of thorough sampling is ...
Halaman 43-40
... usually 4 by 4 or 4 by 6 - in , are set up and temporarily secured by " stay lath . " Studs are held by a temporary board nailed against inside . Studs are 2 by 4 in , usually 16 - in centers ; they are spiked to the sills at lower ends ...
... usually 4 by 4 or 4 by 6 - in , are set up and temporarily secured by " stay lath . " Studs are held by a temporary board nailed against inside . Studs are 2 by 4 in , usually 16 - in centers ; they are spiked to the sills at lower ends ...
Isi
AND SORTING OF ORES | 15 |
ELECTRIC POWER | 16-1 |
sion Wiring | 19-1 |
Hak Cipta | |
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