英语词汇“orion arm”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	orion arm
释义	Orion arm Orion arm See Galaxy. Orion arm [ə′rī·ən ‚ärm] (astronomy) The spiral arm of the Milky Way Galaxy that has a spur in which the sun is located. Also known as local arm.
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Orion arm