Mining Engineers' Handbook, Volume 2Robert Peele, John Adams Church J. Wiley & sons, Incorporated, 1941 |
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Halaman 17-22
... observations consist in measuring directly the horizontal angle between sun or star and the survey line of which the bearing is to be determined ; preliminary observations on other factors required for solution of problem , such as the ...
... observations consist in measuring directly the horizontal angle between sun or star and the survey line of which the bearing is to be determined ; preliminary observations on other factors required for solution of problem , such as the ...
Halaman 17-26
... observations and h the altitude , degrees , the refrac- tion in minutes equals 2 000 ÷ h × n . Add this correction to north declinations , and subtract from south declinations . The latitude used in solar observations may be taken from ...
... observations and h the altitude , degrees , the refrac- tion in minutes equals 2 000 ÷ h × n . Add this correction to north declinations , and subtract from south declinations . The latitude used in solar observations may be taken from ...
Halaman 18-21
... observations on the two scales . The bob is then discon- nected , and the wire threaded through a fine hole in the brass plug screwed into the square block ; the latter is then placed between the adjust- ing screws and shifted by them ...
... observations on the two scales . The bob is then discon- nected , and the wire threaded through a fine hole in the brass plug screwed into the square block ; the latter is then placed between the adjust- ing screws and shifted by them ...
Isi
COMPRESSED | 15 |
Applications Definitions Data | 15-44 |
Accident Compensation Pensions | 16-1 |
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