drafting assembly造句

At present , the model of drafting assembly manufactured domestically and abroad , which is the key part of spinning frame , mainly includes skf model , ina - v model and hp model , etc . while numerous spinning frames manufactured by our country adopt skf model drafting mode which employs spring cradle pressurization and proparea long and short apron drafting , owning advantages of stable running and others
目前国内外制造的细纱机关键部分牵伸装置的形式主要有skf型、 ina - v型、 hp型等几种。而我国制造的细纱机多数采用skf型牵伸形式，这种牵伸形式采用弹簧摇架加压、前区长短皮圈牵伸，有其运转稳定等特点。
It's difficult to find drafting assembly in a sentence. 用drafting assembly造句挺难的