英语词汇“spiral 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	spiral arm
释义	spiral arm Astron. any of the elongated and curved spiral sections that are connected to the center of a spiral galaxy. [1910-15]
随便看	penecontemporaneous Peneios Penelope peneplain penetrable penetralia penetrance penetrant penetrate penetrating penetration penetration aid penetrative penetrometer Peneus Peng Dehuai Penghu Pengpu penguin pengö penholder Penhsi -penia penicil penicillamine

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