... draw-down test 压降试井 draw-down ratio 预拉伸比 Curve， draw-down 泄降曲线 ...
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Draw Down Ratio 拉伸比 ; 缩小比
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The effects of draw-down ratio, air-layer length, drawing conditions on the structure and properties of the fiber were discussed.
探讨了喷丝头拉伸比，空气层长度，拉伸条件对纤维结构性能的影响。
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