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单词 hot cathode
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hot cathode
hot cathode n. a cathode intended to be heated, so that electrons are emitted thermionically; frequently attributive.
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the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > cathode-ray tube > [noun] > cathode intended to be heated
hot cathode1903
1903 J. J. Thomson Conduction Electr. through Gases xiv. 425 The essential feature in the discharge is the hot cathode, as this has to supply the carriers of the greater part of the current in the arc.
1943 Electronic Engin. 16 260/3 The instrument incorporates a hot-cathode, low-voltage, cathode-ray tube.
2001 R. W. Cahn Coming of Materials Sci. x. 405 These low pressures were beyond the range of the McLeod gauge..and it was necessary to use the hot-cathode ionisation gauge.
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