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单词
positive column
释义
WordReference Random House Unabridged Dictionary of American English © 2024
pos
′
itive col′umn,
[
Physics.
]
Physics
the luminous region between the Faraday dark space and the anode glow in a vacuum tube, occurring when the pressure is low.
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exalter
exam
examen
examinable
examinant
examination
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examination for discovery
examine
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examiner
examiningly
examplar
example
exanimate
exanimation
ex animo
ex ante
exanthem
exanthema
exarate
exarch
exarchal
exarchate
exasperate
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更新时间:2025/10/17 1:25:21