organism
发表于 2025-4-2 19:37:00
Masahiro Okubo,Tesshu Hanaka,Hirotaka Ononot prepared until 1771, by K. W. Scheele, and elemental fluorine not until 1886, when H. Moissan subjected a solution of potassium fluoride in anhydrous hydrogen fluoride to electrolysis in a platinum apparatus. This delay is reflected in the chemistry of fluorine compounds. The early development o
GLOSS
发表于 2025-4-3 03:21:46
atom abstraction(1) their corresponding silanes are rather poor H-atom donors towards alkyl radicals and therefore not do support chain reactions except at elevated temperatures(2). Recently we found that the silicon-hydrogen bonds can be dramatically weakened by multiple substitution of Me.Si group
吗啡
发表于 2025-4-3 06:35:30
Sang Won Bae,Arpita Baral,Priya Ranjan Sinha Mahapatraximately 70 identified molecular species have been detected in interstellar molecular clouds and circumstellar shells. Identification of the newly detected species rests mainly on the exacting test between interstellar and laboratory spectra. A large number of unidentified interstellar lines indicat
画布
发表于 2025-4-3 11:27:50
Yiyang Jia,Yoshihiro Kanamori,Jun Mitani of early literature) it was only recently that active work has been done on these substances. . seems to have been the first to identify mono-saccharides from Paleozoic and from pre-Cretaceous Mesozoic rocks (Table 1). In addition to several monosaccharides which he characterized chromatographi
逃避责任
发表于 2025-4-3 12:53:57
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