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nature : temperature measurement instrumentation its tributaries. Many types. General customary measurements below 600 ° C temperature thermometer said, surveying 600 ° C above the temperature of said pyrometer (pyrometer). According to Reading uses can be divided into standard thermometer, Fan-type thermometer and practical thermometer three. Under several methods can be divided into instructions thermometer to record temperature and distance measurement thermometer three. Under the principle role can be divided into expansion (-) thermometers, manometers thermometer, resistance thermometers, thermocouple thermometers and radiation thermometer five. In addition, there are other thermometer.
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