这种线是普通的线。粗纤维经过烧毛处理，然后浸入苛性的苏打水中，使纤维膨胀。 收藏。

These are standard threads which have had the rough fibers 'gassed' off and which have been immersed in caustic soda to swell the fibers.

youdao

这种线是普通的线。粗纤维经过烧毛处理，然后浸入苛性的苏打水中，使纤维膨胀。 收藏。

These are standard threads which have had the rough fibers 'gassed' off and which have been immersed in caustic soda to swell the fibers.

youdao