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单词
flash spectrum
释义
WordReference Random House Unabridged Dictionary of American English © 2024
flash
′
spec′trum,
[
Astron.
]
Astronomy
the emission spectrum of the chromosphere of the sun, which dominates the solar spectrum in the seconds just before and after a total solar eclipse.
1895–1900
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更新时间:2025/12/21 22:47:28