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A tachometer is a device for measuring the speed of rotation or vibration, while a theodolite is an instrument for measuring both horizontal and vertical angles in surveying and navigation. A tachometer measures the rate of rotation while a theodolite is used to measure the angle, direction and distRead more
A tachometer is a device for measuring the speed of rotation or vibration, while a theodolite is an instrument for measuring both horizontal and vertical angles in surveying and navigation. A tachometer measures the rate of rotation while a theodolite is used to measure the angle, direction and distance between two points.
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