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Angle measured may be the deflection angle , the actual angle , or the azimuth angle . The DEFLECTION angle is that between the last course produced and the forward course . The ACTUAL ANGLE measured is usually the smaller of the two ...
Frue - Anglo Angle Read . " ke - Ap corrected in the manner shown in Fig 10. The amount of the correction , a , is obviously that angle whose sine is equal to the distance between telescopes , c , divided by the inclined distance ...
Reading Horizontal Angles with Side Telescope , without Corrections sights may conveniently be read directly on the horizontal ... Correction for Vert Angle by Prism on Main Objective smaller prism which can be inserted , when desired ...
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Conditions Methods in General
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