本文着重确定了梳棉、头道并条、末道并条与成纱棉结之间的关系。
It is demonstrated by experiments that there is a linear correlation relationship among carding, first drawing, final strawing and yarn nep.
头道并条机将梳棉棉条的纤维梳理平行顺直并拉伸成薄层，再重新形成棉条。
The breaker-drawing unit smooths out the card slivers, pulls out the fibers into a thin layer, and re-forms a new sliver.
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