“scanning electron microscope”的概念、定义、翻译、参考文献-科学参考

单词	scanning electron microscope
释义	scanning electron microscope [`skan·iŋ i`lek´trän `mī·krǝ´skōp] ^ELECTRONICS A type of electron microscope in which a beam of electrons, a few hundred angstroms in diameter, systematically sweeps over the specimen; the intensity of secondary electrons generated at the point of impact of the beam on the specimen is measured, and the resulting signal is fed into a cathode-ray-tube display which is scanned in synchronism with the scanning of the specimen.
随便看	constant instruction constant-k filter constant-k lens constant-k network constant-level balloon constant-level chart constant-level surface constant-load balance constant-load support constant-luminance transmission constant of aberration constant of gravitation constant of integration constant of motion constant of the cone constant-potential accelerator constant-potential electrolysis constant-pressure balloon constant-pressure chart constant-pressure combustion constant-pressure gas thermometer constant-pressure-pattern flight constant-pressure surface constant radio code constant-resistance dc potentiometer

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