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单词 plasma frequency
释义

plasma frequency

Physics
noun
The natural resonant frequency of a plasma oscillation, equal to the minimum frequency of electromagnetic waves that can travel through the plasma without attenuation (the value is approximately 8920√n Hz, where n is the number of free electrons per cubic centimetre).

Origin

1940s; earliest use found in The Physical Review.

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更新时间:2024/9/19 9:27:40