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Topographic Abney level

An Abney level and clinometer is an instrument used in surveying which consists of a fixed sighting tube, a movable spirit level that is connected to a pointing arm, and a protractor scale. An internal mirror allows the user to see the bubble in the level while sighting a distant target. It can be used as a hand-held instrument or mounted on a Jacob's…

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Topographic Abney level

Nodes21
Edges20
Triples5
Avg. degree1.9
Density0.095238
Components1

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level abney used target surveyor measure slope height levels angle surveying staff use instrument sighting scale grade bubble typically along

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a watchinstance ofAlong with necessary tools0.80text
compassinstance ofAlong with necessary tools0.80text
sextantinstance ofAlong with necessary tools0.80text
plenty of paperinstance ofAlong with necessary tools0.80text
the committee includedinstance ofAlong with necessary tools0.80text

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