The configuration of DK903 carding machine card clothing, speed and main gauge are analysed by example of spinning cotton and super fine fibre in it. Its idea of process design is discussed.

以DK90 3型梳棉机纺棉和纺超细纤维为例，分析了针布、速度及主要隔距的配置情况，探讨了DK90 3型梳棉机工艺设计思想。

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If the fine structure of fibre is also considered, it will still save about 11 ~ 25% of dyestuff.

如果要同时考虑纤维的聚集态结构不同，则可以节约染料约11 ~ 25%左右。

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Two key factors for drilling high quality holes of carbon fibre reinforced plastics, which are to keep the fine sharpness of the cutting lip of the drill and to use high drilling speed are discussed.

探讨了获得钻削碳纤维复合材料高质量孔的两个关键因素：保持钻头切削刃的良好锋利性和采用高的钻削速度。

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