逗它小傻瓜
发表于 2025-3-28 17:37:36
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爱社交
发表于 2025-3-28 21:20:17
Late Stages of Stellar Evolutionarly young planetary nebulae with Wolf-Rayet (WR) central stars, were found to exhibit emission features in their ISO spectra that are characteristic of both oxygen-rich and carbon-rich dust species, while far-IR observations of the PDR around NGC 7027 led to the first detections of the rotational line spectra of CH and CH..
混合,搀杂
发表于 2025-3-29 01:52:05
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AXIOM
发表于 2025-3-29 05:04:27
Book 2005ace missions and cooled telescopes, infrared astronomy is the last branch of this discipline to come of age. After a very successful sky survey performed in the eighties by the IRAS satellite, the Infrared Space Observatory, in the nineties, brought spectacular advances in the understanding of the p
harpsichord
发表于 2025-3-29 07:41:38
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尊严
发表于 2025-3-29 14:26:46
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JEER
发表于 2025-3-29 19:28:40
rline. Here the communities show certain similarities to forest European ones..Comparisons between carabid coenoses over this area present considerable difficulties because of the uneven occurrence of a lot of species among the various massifs as a consequence of more colonization and extinction eve
不安
发表于 2025-3-29 20:57:35
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引水渠
发表于 2025-3-30 01:39:07
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Indicative
发表于 2025-3-30 04:25:40
oxides..Depending on the phase of the raw materials, aerosol processes can be classified into two routes. Powders are made at high temperatures either by reacting gases and vapors (gas-to-particle conversion route) or by transforming precursor particles/droplets to the desired product (particle-to-p