Last Updated：2025/11/22
Sentence
天文学者たちは、若い星を取り巻く原始惑星系円盤の渦巻き構造を観測した。
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Astronomers observed spiral structures in the protoplanetary disk encircling the young star.
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Astronomers observed spiral structures in the protoplanetary disk encircling the young star.
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Related words
protoplanetary disk
Noun
Japanese Meaning
原始惑星系円盤: 若い新生星を取り巻く、回転する高密度なガスと塵の円盤で、ここから惑星が形成される天体物理学的現象を指す。
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