convert
发表于 2025-3-25 03:43:19
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Pastry
发表于 2025-3-25 10:53:32
B. C. Goswami introduction to Lie groups and serves as a foundation for aAimed at advanced undergraduate and beginning graduate students, this book provides a first taste of the theory of Lie groups as an appetiser for a more substantial further course. Lie theoretic ideas lie at the heart of much of standard un
abject
发表于 2025-3-25 12:53:58
Spin finishes for manufactured fibres,Manufactured fibres require spin finishes for efficient processability and conversion to textile materials for various applications. Although a spin finish is a layer only a few molecules thick on the surface of the fibre, it is one of the most important variables dictating the performance, quality and uniformity of processing.
尾巴
发表于 2025-3-25 17:25:17
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FADE
发表于 2025-3-25 21:50:30
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CLOWN
发表于 2025-3-26 00:22:45
Introduction,bility. In addition, it should have dimensional and thermal stability and minimum levels of strength and extensibility consistent with the end use. Fibres should also be capable of being converted into yarns and fabrics. There are a number of other requirements that a fibre must satisfy, but those noted above are relatively more significant.
取消
发表于 2025-3-26 07:32:42
Basic principles of fluid flow during fibre spinning,hese creatures showed that the following steps were required for extruding thin continuous filaments: (1) acquisition of spinnable liquid, (2) jet formation, and (3) jet hardening. Add to this bobbin winding, and we get manufactured fibres in the spun state. The manufactured fibres may need further drawing so that they have adequate properties.
古董
发表于 2025-3-26 09:57:10
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installment
发表于 2025-3-26 13:48:53
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卷发
发表于 2025-3-26 17:20:38
Melt-spinning processes,ment bundles are wound on tube rolls. In larger modern plants, polyester and nylon are produced in continuous polymerization units in which the melt is directly transported from the final polymerizer to the melt-spinning unit. In the case of polypropylene, since polymerization leads to a solid product, it is separate from the spinning process.