包芯纱具有较高的断裂强力，其次是平行纱，而包缠纱的最低；
The tensile strength of the core yarn is the highest, the second is the folded yarn, and the lowest is the wrapped yarn.
针织精梳毛纱：用经过精梳的羊毛长纤维纺成的毛纱。精梳时除去不需要的短纤维并使纤维平行排列。
Worsted: Wool yarn made of long-staple fibres that have been combed to remove unwanted short fibres and make them lie parallel.
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