intuition 发表于 2025-3-23 10:19:50

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异端邪说2 发表于 2025-3-23 15:08:52

Gas, Dust, Stars and Variable Stars,riety of people. Some would be very small, being seated in wheeled chairs and pushed along by larger specimens, or bodily carried by these larger specimens. There would be people a whole range of sizes and with a wide range of physical characteristics. The smallest people tend to have unlined faces

心胸狭窄 发表于 2025-3-23 18:56:54

Stellar Evolution, theoretical, though there are plenty of examples of stars in apparently different stages of their lives to bolster the theorists’ models. The timescales might be wrong, but astronomers do have confidence in the basic details.

itinerary 发表于 2025-3-24 00:11:34

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Engaging 发表于 2025-3-24 03:21:10

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puzzle 发表于 2025-3-24 09:55:57

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愉快么 发表于 2025-3-24 14:15:36

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反应 发表于 2025-3-24 17:50:00

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Isthmus 发表于 2025-3-24 20:55:21

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会犯错误 发表于 2025-3-25 01:15:24

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查看完整版本: Titlebook: Astronomy Explained; Gerald North Book 1997 Springer-Verlag London Limited 1997 Accretion.astronomy.cosmology.earth.gravitation.moon.neutr