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mercury-in-steel thermometer

A liquid-in-metal thermometer in which mercury is enclosed in a steel envelope. The change in internal pressure caused by the temperature variation is measured by a Bourdon tube that is connected to the mercury by a capillary tube. This instrument is very accurate and has extremely good pen control when arranged as a thermograph.

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  • ส่วนหนึ่งของคำพูด: noun
  • อุตสาหกรรม/ขอบเขต: Weather
  • Category: Meteorology
  • Company: AMS

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