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单词
perseus arm
释义
Perseus arm
Perseus arm
See Galaxy.
Perseus arm
[
′pər·sē·əs ‚ärm
]
(astronomy)
A spiral arm of the Milky Way galaxy visible in the constellation Perseus, located (as viewed from the earth) in the direction opposite that of the galactic center.
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更新时间:2025/6/4 0:16:31