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单词
spectrum variable
释义
spectrum variable
spectrum variable
[
′spek·trəm ′ver·ē·ə·bəl
]
(astronomy)
A main-sequence star of spectral class A whose spectrum displays anomalously strong lines of metals and rare earths whose intensity varies by about 0.1 magnitude over periods from 1 to 25 days.
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更新时间:2024/12/23 18:48:03