#weighing_machine__scale  a measuring instrument for weighing; shows amount of mass
  supertype:  #measuring_instrument__measuringinstrument__measuring_system__measuringsystem__measuring_device__measuringdevice  instrument that shows the extent or amount or quantity or degree of something
  subtype:  #balance.weighing_machine  a scale for weighing; depends on pull of gravity
     subtype:  #beam_balance  a balance consisting of a lever with two equal arms and a pan suspended from each arm
        subtype:  #analytical_balance__chemical_balance  a beam balance of great precision used in quantitative chemical analysis
     subtype:  #electronic_balance  balance that generates a current proportional to displacement of pan
     subtype:  #microbalance  balance for weighing very small objects
     subtype:  #spring_balance__spring_scale  a balance that measure weight by the tension on a helical spring
     subtype:  #steelyard__lever_scale__leverscale__beam_scale  a portable balance consisting of a pivoted bar with arms of unequal length
  subtype:  #weighbridge  platform scale flush with a roadway for weighing vehicles and cattle etc

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