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Bøker Bok 16 av 6... for points of observation, the instrument cannot be placed exactly at the centre...
" ... for points of observation, the instrument cannot be placed exactly at the centre of the signal, and consequently the angle observed will be different from that which would have been found at the centre. The correction is generally very small, and... "
Course of Civil Engineering: Comprising Plane Trigonometry, Surveying, and ... - Side 207
av John Gregory - 1842 - 301 sider
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An Introduction to the Theory and Practice of Plane and Spherical ...

Thomas Keith - 1810 - 420 sider
...c«ntre. The correction is generally very small, and is only necessary where great accuracy is required. The observer may be considered in three different...observer, when produced, would pass without the objects. (D) FIRST, let the observer be at D, in a line between the objects B and c, viz. on one side of the...
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Geometrical and Graphical Essays: Containing a General Description of the ...

George Adams - 1813 - 534 sider
...observer may be considered in three different positions with respect to the centre and the objects; for he is either in a line with the centre and one of these objects, or in an intermediate one, that is, a line from this centre to the observer produced...
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An Introduction to the Theory and Practice of Plain and Spherical ...

Thomas Keith - 1826 - 442 sider
...centre. The correction is generally very small, and is only necessary where great accuracy is required. The observer may be considered in three different...observer, when produced, would pass without the objects. (D) FIRST, let the observer be at D, in a line between the objects в and c, viz. on one side of the...
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An introduction to the theory ... of plane and spherical trigonometry ...

Thomas Keith - 1839
...centre. The correction is generally very small, and is only necessary where great accuracy is required. The observer may be considered in three different...observer, when produced, would pass without the objects. (175) FIRST, let the observer be at D, in a line between the objects B and c, viz. on one side of the...
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A Manual of Surveying for India, Detailing the Mode of Operations on the ...

Sir Henry Edward Landor Thuillier - 1851 - 718 sider
...observer may be considered in three different positions with respect to the centre and the objects ; for he is either in a line with the centre, and one of these objects, or in an intermediate one, that is, a line from this centre to the observer produced,...
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A treatise on practical mensuration

Anthony Nesbit - 1859 - 450 sider
...centre. The correction is generally very small, and is only necessary where great accuracy is required. The observer may be considered in three different...observer, when produced, would pass without the objects. • Philosophical Transactions for 1797, p. 29, « stq. First. Let the observer be at D, in a line...
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