Endearing
发表于 2025-3-23 12:34:22
,Cross polarization — magic angle spinning NMR studies of carbohydrates and aromatic polymers,of solid state polymers. The review covers carbohydrates, synthetic aromatic polymers, lignins, humic acid and humins, peat and fossil fuels. The following experimental topics are discussed: basic theory, pulse techniques, chemical shifts and relaxation data, and quantitative evaluation of solid-state spectra.
表示向前
发表于 2025-3-23 15:21:36
http://reply.papertrans.cn/23/2241/224011/224011_12.png
表被动
发表于 2025-3-23 18:09:25
http://reply.papertrans.cn/23/2241/224011/224011_13.png
Decongestant
发表于 2025-3-24 00:55:26
http://reply.papertrans.cn/23/2241/224011/224011_14.png
Herpetologist
发表于 2025-3-24 05:16:50
Hilfsmittel der praktischen Mathematik, and to select examples which illustrate key problems in the area of polymer physics..As a prelude to the discussion it is necessary to consider the definition of orientation in terms of the Euler angles, and the definition of an orientation distribution function in terms of an expansion of Legendre
阐释
发表于 2025-3-24 09:55:31
Hilfsmittel der praktischen Mathematik,lymer texture and morphology. Microhardness is a rather elusive quantity, that is really a combination of other mechanical properties. It is most suitably defined in terms of the pyramid indentation test. Hardness is primarily taken as a measure of the irreversible deformation mechanisms which chara
cortisol
发表于 2025-3-24 13:25:46
http://reply.papertrans.cn/23/2241/224011/224011_17.png
排出
发表于 2025-3-24 15:45:22
http://reply.papertrans.cn/23/2241/224011/224011_18.png
无目标
发表于 2025-3-24 21:21:06
http://reply.papertrans.cn/23/2241/224011/224011_19.png
人类学家
发表于 2025-3-25 02:45:07
http://reply.papertrans.cn/23/2241/224011/224011_20.png