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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