аргон (Ar, 1S0 қатты күйінде)

аргон (Ar, 1S0 қатты күйінде)

colourless, odourless gas comprising 1% of the atmosphere

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行业/领域：天文学
类别普通天文学
Company: Caltech
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the light produced by excited atoms and ions in the upper atmosphere of a planet

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