The result shows that pneumatic V type draft mechanism is suitable for large draft technology in production, and if weighing roving quantum, yarn quality is better than pressure of spring cradle.
结果表明，气动V形牵伸机构在生产中适合大牵伸工艺，粗纱定量加重，成纱质量较弹簧摇架加压好。
The result shows that domestic V type draft set with reasonable spinning processing can improve yarn quality and reduce evenness CV.
采用国产V型牵伸装置，合理配置纺纱工艺，可以改善成纱质量，降低条干CV值。
The result shows that domestic V type draft set with reasonable spinning processing can improve yarn quality and reduce evenness CV.
采用国产V型牵伸装置，合理配置纺纱工艺，可以改善成纱质量，降低条干CV值。
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