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自捻纺纱
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自捻纺纱
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self-twist spinning
自捻纺纱
在两根单纱条上加上具有正反捻向相间的假捻,然后立即将两根单纱条紧靠在一起,依靠两根纱条的抗扭力矩自行捻合成具有自捻捻度的双股自捻线(ST线)的新型纺纱方法。
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national physique
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National Pilot Projects of Electronic Records Management
National plan for grassland protection, construction and utilization of China
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National Plan for Prevention and Control of desertification (2011-2020)
national planning of flash flood disaster control
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