的’
发表于 2025-4-1 02:14:54
esearch activities have concentrated on mechanisms and related aspects. Among these the following were the most important topics: hydrogen transfer and especially the question of concerted or multistep reaction; the influence of the structure on the selectivity of hydrogen migration . higher-membere
领带
发表于 2025-4-1 07:59:04
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Anterior
发表于 2025-4-1 10:21:05
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obligation
发表于 2025-4-1 15:01:04
cids as a key to the understanding of the nature of life is reflected in the enormous number of published works on the subject, including many outstanding monographs and surveys. The pathways of syn thesis and metabolism of nucleic acid,s and the many and varied biological functions of these biopol
wall-stress
发表于 2025-4-1 20:24:30
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壕沟
发表于 2025-4-2 01:15:47
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paradigm
发表于 2025-4-2 06:06:06
Shareef Ahmed,Shin-ichi Nakano,Md. Saidur Rahmans. A selection of techniques that can be applied to grow thin films and/or nanowires of molecule-based materials is described. These techniques can be divided in two categories: deposition using a gas phase reaction or a reaction in solution. Chemical vapor deposition (CVD) and evaporation under ult
单片眼镜
发表于 2025-4-2 09:18:18
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parsimony
发表于 2025-4-2 11:24:32
Ivor Hoog v.d.,Marc van Kreveld,Wouter Meulemans,Kevin Verbeek,Jules Wulmsic compounds. Particular attention is paid to the n-fatty acids, since numerous studies have recently been made on these compounds. Details of their molecular structures are described, based on X-ray crystallographic and vibrational spectroscopic data. Using stearic acid, an outstanding model substa
责问
发表于 2025-4-2 17:30:54
Stefan Klootwijk,Bodo Manthey,Sander K. Visserskeletons are built up of carbon atoms. The remaining valences are connected with ligands such as hydrogen, halo gens, -OH,==O, -NH . Some of the skeletal carbon atoms can be replaced by non 2 metals such as oxygen, nitrogen, or sulfur {"heteroatoms"}. It is characteristic for the living world, no