geri gözlem

listen to the pronunciation of geri gözlem
Турецкий язык - Английский Язык
backsight
A measurement or reading taken back towards a point of known elevation, used to calculate the height of the theodolite
Foresight, n
The rear sight of a firearm
In levelling, the first reading taken on a staff after setting up the Level A backisight is always taken on a point of known or assumed height
A measurement of a previously shot point, used to set the angle to zero when occupying a new position
To shoot a backsight
Cf
The reading of the leveling staff in its unchanged position when the leveling instrument has been taken to a new position; a sight directed backwards to a station previously occupied
A backsight is a reading taken on a position of known coordinate(s) Since a survey progresses from a point of known position to points of unknown position, a backsight is a reading looking "backward" along the line of progress
{i} rear sight on a firearm; (in leveling) reading on a rod which is held on a point of known elevation
A rod reading taken on a point of known elevation, a benchmark or a turning point Backsights are added to the known elevation to arrive at the height of the instrument With a known height of the instrument, the telescope can be used to determine the elevation of other points in the vicinity
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