Direction of further improving the performance of quadruple-twist yarn was brought forward.
对四倍捻纱线性能进一步改善提出了方向。
When it is rolled clockwise by your right hand, an S-twist yarn will become tighter and a Z-twist yarn looser.
如果你用右手顺时针的旋转它，S捻的纱线会越变越紧，Z捻的纱线会越变越松。
An S-twist yarn is one in which the fibers follow a spiral pattern parallel to the center bar of the letter s.
捻的纱线中的纤维成螺旋状并与字母s中间的斜杠平行。
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