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单词 scanning electron microscope
释义

Definition of scanning electron microscope in English:

scanning electron microscope

(also SEM)
noun
  • An electron microscope in which the surface of a specimen is scanned by a beam of electrons that are reflected to form an image.

    Example sentencesExamples
    • X-ray spectrometers are attached routinely to scanning electron microscopes and these provide elemental analyses of samples in the SEM and are a powerful means for pigment identification.
    • The hot electron source has been used on most scanning electron microscopes since their introduction in 1965.
    • A specimen obtained from scrapings of the woman's hand was prepared and examined with the use of a scanning electron microscope.
    • Another type of scanning electron microscope, the environmental scanning electron microscope, was developed in the late 1980s.
    • After all, the stars of the best forensic science shows are often the equipment - DNA sequencers, mass spectrometers, photometric fingerprint illuminators, scanning electron microscopes and the like.
 
 

Definition of scanning electron microscope in US English:

scanning electron microscope

(also SEM)
noun
  • An electron microscope in which the surface of a specimen is scanned by a beam of electrons that are reflected to form an image.

    Example sentencesExamples
    • After all, the stars of the best forensic science shows are often the equipment - DNA sequencers, mass spectrometers, photometric fingerprint illuminators, scanning electron microscopes and the like.
    • A specimen obtained from scrapings of the woman's hand was prepared and examined with the use of a scanning electron microscope.
    • Another type of scanning electron microscope, the environmental scanning electron microscope, was developed in the late 1980s.
    • The hot electron source has been used on most scanning electron microscopes since their introduction in 1965.
    • X-ray spectrometers are attached routinely to scanning electron microscopes and these provide elemental analyses of samples in the SEM and are a powerful means for pigment identification.
 
 
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更新时间:2025/2/26 3:59:54