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单词
rgu system
释义
RGU system
RGU system
[
¦är¦jē′yü ‚sis·təm
]
(astronomy)
A system for obtaining a complete assessment of a star's magnitude, based on measurements of the star's brightness when viewed through red, green, and ultraviolet filters.
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更新时间:2025/7/27 22:06:09