Often yarns are too fine to allow the unaided eyes to discern the twist direction.
纱线通常因为太细使得肉眼很难识别其捻向。
The direction of the twist does not affect the yarn's performance.
加捻的方向不会影响纱线的外观。
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。
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。
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