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单词 electron microscope
释义

WordReference Random House Unabridged Dictionary of American English © 2024
electron mi′croscope, 
  1. Opticsa microscope of extremely high power that uses beams of electrons focused by magnetic lenses instead of rays of light, the magnified image being formed on a fluorescent screen or recorded on a photographic plate: its magnification is substantially greater than that of any optical microscope.
  • 1930–35

Collins Concise English Dictionary © HarperCollins Publishers::
electron microscope n
  1. a powerful type of microscope that uses electrons, rather than light, and electron lenses to produce a magnified image
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