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单词 immersion electron microscope
释义 immersion electron microscope
[ǝ`mǝr·zhǝn i¦lek´trän `mī·krǝ´skōp]
ELECTRONICS
An emission electron microscope in which the specimen is a flat conducting surface which may be heated, illuminated, or bombarded by high-velocity electrons or ions so as to emit low-velocity thermionic, photo-, or secondary electrons; these are accelerated to a high velocity in an immersion objective or cathode lens and imaged as in a transmission electron microscope.
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