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单词
line spectrum
释义
WordReference Random House Unabridged Dictionary of American English © 2024
line
′
spec′trum,
[
Physics.
]
Physics
an electromagnetic spectrum consisting of discrete lines, usually characteristic of excited atoms or molecules. Cf.
band spectrum, continuous spectrum, spectral line.
1870–75
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更新时间:2026/6/27 3:53:22