vacuum gauge

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English[edit]

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Noun[edit]

vacuum gauge (plural vacuum gauges)

  1. (physics) An instrument that is used to measure very low pressures of gases.
    • 1961 March, ""Balmore"", “Driving and firing modern French steam locomotives”, in Trains Illustrated, page 150:
      The usual comprehensive gauges were available, including the pyrometer, which was to show some 350 deg C. throughout the journey, and the smokebox vacuum gauge, which is closely observed when working the engine heavily.

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