Surveying
The station where observations are not made, but the angles at the station are used in triangulation series, is known as

Satellite station
Main station
Pivot station
Subsidiary station

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Surveying
The prismatic compass and surveyor’s compass

give whole circle bearing (WCB) of a line and quadrantal bearing (QB) of a line respectively
both give WCB of a line
both give QB of a line
both give QB of a line and WCB of a line

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