Twist one shredded paper ink, put a sentiment, in the impression the drafting of old Berlin.
捻一纸碎墨，揣一份情愫，在印象里起草旧时的柏林。
2
The influence of percentage of spandex, drafting ratio of spandex and twist of core spun yarn on tensile properties and elasticity of spandex core spun yarns on woolen spinning system were studied.
文章介绍了在纺制毛粗纺氨纶包芯纱时，氨纶百分含量、预牵伸倍数和捻度对包芯纱强伸性和弹性的影响规律；
3
The false twist by the back roving guide in Siro spinning can affect the stability of yarn drafting and the evenness of the yarn.