介绍了铜氨纤维的特性，铜氨纤维与棉纤维混和纺制针织用纱的工艺方案是采用三道并条的工艺。

Property of cuprammonium rayon was introduced. Three passages drawing was done, and this processing plan was adopted when spinning cuprammonium rayon cotton blended knitting yarn.

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铜是人体必需的微量元素之一，是胎膜中胶原纤维发育成熟的关键酶赖氨酰氧化酶的活性辅基。

Copper is one of essential trace elements for human, acting as an active agon of lysyloxidase which is critical enzyme for collagen maturation.

youdao

铜是人体必需的微量元素之一，是胎膜中胶原纤维发育成熟的关键酶赖氨酰氧化酶的活性辅基。

Copper is one of essential trace elements for human, acting as an active agon of lysyloxidase which is critical enzyme for collagen maturation.

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