Measuring instrument

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In physics and engineering, measurement is the activity of comparing physical quantities of real-world objects and events. Established standard objects and events are used as units, and the measurement results in a given number for the relationship between the item under study and the referenced unit of measurement. Measuring instruments are the means by which this translation is made.

Blood Pressure

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Chemistry

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Engineering

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Flow

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Frequency

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General

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Radiation

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River-level

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See Stream gauge

Traffic

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