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  • Measurements and Measuring Instruments
Calibration is a quantitative comparison. Check the reading of the instrument, it is achieved by measuring the actual standard part, and the deviation between the measured value and the actual value is corrected.
Quantitative observation for manufacturing cannot rely solely on human senses, such as vision, hearing, touch, etc., but requires special measuring instruments. Measurement refers to the numerical representation of the size of an object based on a certain standard (unit).
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