大家在查：原料选配并纱开松棉混纺计算机科学历史粗纱机梳理机新疆产区荒川美穗干员

前纺

前纺

前纺

1

Big ration draft in the front section must be in accordance with the equipment performance .

指出前纺采用重定量工艺时必须视设备性能优化牵伸工艺，不能千篇一律。

5

It is important to improve the quality of yarn and raise the efficiency of labour and reduce the number of operations in drewing.

它对提高产品质量、提高劳动效率，缩短前纺工艺道数起着积极作用。

7

Other preparatory machines for worsted spinning systems

其它精梳毛纺前纺机械

8

Preparatory Machinery for Cotton Spinning Systems

棉纺前纺机械

9

Other preparatory machines for semi-worsted and woolen spinning systems

其它半精梳毛纺及毛纺前纺机械

10

Preparatory Machinery for Bast Fibres Spinning Systems

麻纤维前纺机械

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