Substitution
发表于 2025-3-25 06:06:18
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潜伏期
发表于 2025-3-25 07:41:23
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终点
发表于 2025-3-25 13:29:11
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confide
发表于 2025-3-25 17:29:38
Oxygen-17 NMR Spectra, (rather than by inference or difference). Its position in NMR analysis is also difficult, because the only naturally occurring magnetic isotope is .O, with an abundance of 0.037% and an over all sensitivity 10. times less than that of proton. It also has spin = 5/2, and therefore a quadrupole momen
标准
发表于 2025-3-25 21:00:10
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restrain
发表于 2025-3-26 00:18:47
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艺术
发表于 2025-3-26 06:07:35
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FATAL
发表于 2025-3-26 11:31:26
https://doi.org/10.1007/978-1-349-18348-7chemistry; magnetic resonance; nuclear magnetic resonance; nuclear magnetic resonance (NMR)
辩论的终结
发表于 2025-3-26 16:11:03
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Pcos971
发表于 2025-3-26 20:50:34
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