VOK
发表于 2025-3-28 16:04:45
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Fecal-Impaction
发表于 2025-3-28 20:49:05
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projectile
发表于 2025-3-29 02:02:27
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人类
发表于 2025-3-29 04:46:32
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Thymus
发表于 2025-3-29 10:59:33
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Mendicant
发表于 2025-3-29 11:37:54
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PLAYS
发表于 2025-3-29 16:06:04
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馆长
发表于 2025-3-29 21:08:47
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gruelling
发表于 2025-3-30 00:41:53
Isomerism and UV SpectraThe intense color of carotenoids is caused by the strong extinction in the region, 400–500 m., where the spectral curve shows a massive band. If the latter exhibits vibrational fine structure, in most instances three maxima or two maxima and a shoulder appear, whereby the middle peak has the highest intensity.
FLINT
发表于 2025-3-30 06:09:26
Preparation of , Carotenoids by Direct Rearrangement of the All-, Form carotenoids have been obtained by stereo isomerization of all-. pigments, by total synthesis, and by isolation from plants or animals.