Mining Engineers' Handbook, Volume 1Robert Peele, John Adams Church J. Wiley & sons, Incorporated, 1941 |
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Halaman 17-55
... positions of soundings are " cut in " by a transit reading from shore , or by an angle taken with sextant from boat . ( c ) Boat may be rowed on a range line , or not , while its position is located by angles taken simultaneously by two ...
... positions of soundings are " cut in " by a transit reading from shore , or by an angle taken with sextant from boat . ( c ) Boat may be rowed on a range line , or not , while its position is located by angles taken simultaneously by two ...
Halaman 18-17
... position . Cast- iron bobs have been suspected of being susceptible to magnetic influences , tending to deflect them from their true position . This was once observed in a case where a pile of steel rails lay in the magnetic meridian ...
... position . Cast- iron bobs have been suspected of being susceptible to magnetic influences , tending to deflect them from their true position . This was once observed in a case where a pile of steel rails lay in the magnetic meridian ...
Halaman 18-20
... position of wire . ( a ) If period of swing gives enough time , the wire may be followed with the upper tangent motion of the transit , the extreme right and left position being noted on the vernier . The aver of a series of readings ...
... position of wire . ( a ) If period of swing gives enough time , the wire may be followed with the upper tangent motion of the transit , the extreme right and left position being noted on the vernier . The aver of a series of readings ...
Isi
COMPRESSED AIR PRACTICE | 15-2 |
Appli | 15-15 |
Hydraulic Compressors | 15-22 |
Hak Cipta | |
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