Mining Engineers' Handbook, Volume 2Robert Peele, John Adams Church J. Wiley & sons, Incorporated, 1941 |
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Hasil 1-3 dari 83
Halaman 17-41
... distance equal to F , the focal length of objective . Hence the distance from center of instrument to rod , when the sight is horiz and the rod vert ( F ÷ i ) 8 + ( F + c ) , where i is distance between upper and lower stadia hairs , 8 ...
... distance equal to F , the focal length of objective . Hence the distance from center of instrument to rod , when the sight is horiz and the rod vert ( F ÷ i ) 8 + ( F + c ) , where i is distance between upper and lower stadia hairs , 8 ...
Halaman 17-42
... distance also must be computed from the inclined sight . By trigonometry , making one slight assumption , it may be shown that in Fig 25a : ( F ÷ i ) 8 X 1/2 sin 2 a + ( F + c ) sin a . Vertical Distance = Horizontal Distance = ( F ÷ i ) ...
... distance also must be computed from the inclined sight . By trigonometry , making one slight assumption , it may be shown that in Fig 25a : ( F ÷ i ) 8 X 1/2 sin 2 a + ( F + c ) sin a . Vertical Distance = Horizontal Distance = ( F ÷ i ) ...
Halaman 36-45
... distance of two - thirds its length from the apex . Center of gravity of the solid cone or pyramid is on the line joining the apex with the centroid of the bass , at a distance of three - fourths its length from the apex . FRUSTUM OF A ...
... distance of two - thirds its length from the apex . Center of gravity of the solid cone or pyramid is on the line joining the apex with the centroid of the bass , at a distance of three - fourths its length from the apex . FRUSTUM OF A ...
Isi
COMPRESSED | 15 |
Applications Definitions Data | 15-44 |
Accident Compensation Pensions | 16-1 |
Hak Cipta | |
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