#electron_microscope  a microscope that is similar in purpose to a light microscope but achieves much greater resolving power by using a parallel beam of electrons to illuminate the object instead of a beam of light
  supertype:  microscope  magnifier of the image of small objects; "the invention of the microscope led to the discovery of the cell"
  part:  electron_gun
  subtype:  field-emission_microscope  electron microscope used to observe the surface structure of a solid

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