通过控制前罗拉与后罗拉的转速，由软件实现对粗纱牵伸倍数与捻度的控制。
By controlling the speed of front roller and back roller, the software controls the pulling times and twisting degree.
为了顺利生产亚麻弹力织物，在加工弹力纱时，要对捻线机进行改造，重点控制好捻度和氨纶预牵伸倍数等工艺参数。
To produce flax elastic fabric, the twister should be innovated in the production, and processing parameters such as twist, polyurethane pre-draft multiple should be controlled.
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