柳树;枯黄 发表于 2025-3-26 21:51:02
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Nuclear magnetic resonance,macromolecules are concerned, NMR is divided into two major areas. From the chemist’s viewpoint, high resolution NMR provides detailed information about the chain microstructure in solution and is an indispensable tool of polymer chemistry. From the materials scientist’s viewpoint, many of the m无力更进 发表于 2025-3-27 05:57:02
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Anisotropic yield behaviour,ield in general. In describing the deformation of many crystalline materials, especially metals, it is often convenient to introduce the idealization of an elastic-plastic transition. The term . is used to describe the components of strain which are proportional to the components of the applied streGLARE 发表于 2025-3-27 20:12:17
Film formation, about 10% per annum. This is attributable to some unique properties of films particularly attractive to the food packaging business, by far their largest market sector. Films can be passive and offer aesthetics, but they can be active and offer protection of contents, perhaps against oxygen or wateARENA 发表于 2025-3-28 00:14:42
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00.Die 2. Auflage dieses erfolgreichen Ratgebers für die Luftfahrtindustrie erläutert detailliert die Anforderungen der neuen EN 9100:2016 und gibt überdies praktische Tipps für ein erfolgreiches Zertifizierungsaudit..Die Europäische Norm EN 9100 ist die branchenspezifische Norm der Luft-, Raumfahrthandle 发表于 2025-3-28 06:51:18
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G. L. Wilkes,R. S. Steinstocks for biochemicals and biofuels. Marine macroalgae have many advantages over terrestrial plant biomass, including high carbohydrate content which converts seaweed in a cogent alternative feedstock. Algal carbohydrates show a diverse sugar composition, which implies that specialized enzymatic sy