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To find the height of an instrument in surveying, you need to measure the vertical distance from the ground surface to the instrument. This can be done using a spirit level or dumpy level, and then subtracting the known height of the ground surface.
To find the height of an instrument in surveying, you need to measure the vertical distance from the ground surface to the instrument. This can be done using a spirit level or dumpy level, and then subtracting the known height of the ground surface.
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