The false twist by the back roving guide in Siro spinning can affect the stability of yarn drafting and the evenness of the yarn.
赛罗纺配用的后导纱器对粗纱产生的假捻会影响细纱牵伸的稳定性和成纱条干。
2
Finally, according to the guide of standard drafting, It was summarized the method of relative standards drafting in construction of spatial information system.