The knotty yarn has two forms of rupture and their strength and elongation properties make a great difference.
结子线有两种断裂形式 ,纱线的强伸性能有较大差别 ;圈圈线的强伸性能主要由芯纱决定 ;氨纶包缠纱由氨纶提供弹性 ,由包缠在氨纶外侧的非弹性纱决定纱线的强力。
The C-G rule and the C-G coefficients are calculated and the intertwiner for tensor representations in different orders is constructed with C-G coefficients.
明确地构造了量子代数Uq(Sl(2))当q=i和z中心扩张时的两维循环表示,此表示是既约的;给出了张量表示的C—G规则和C—G系数以及不同次序张量表示的扭结子(Intertwiner)。
The intertwiner for tensor representations in different ordersis constructed with C-G coefficients.
明显地构造了Uq(sl2)的二维循环表示及其扭结子。
Design and spin fancy yarns with polyester filament,mainly spiral yarn,seed yarn and circle yarn,and test the fineness,tensile break strength,elongation and twist of the spinned yarn,which provides the material performance basis for the late fabric design.
对涤纶长丝纺制花式线进行花样设计,主要是螺旋纱、结子纱、圈圈纱,并对纺制出的花式纱线的细度、拉伸断裂强度、断裂伸长率及捻度等性能进行测试,为后期的面料设计提供了材料性能依据。