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单词
spectroscopic binary star
释义
spectroscopic binary star
spectroscopic binary star
[
¦spek·trə¦skäp·ik ′bī‚ner·ē ′stär
]
(astronomy)
A binary star that may be distinguished from a single star only by noting the Doppler shift of the spectral lines of one or both stars as they revolve about their common center of mass.
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更新时间:2025/6/30 15:52:26