Wool fibers can be spun into yarn.

羊毛纤维可纺成纱。

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Spinning wool fibers into yarns requires some special procedures.

将羊毛纺制成纱线需要一些特殊的工序。

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They have developed a new method to reclaim wool fibers from textile wastes.

他们已经研发了一种从纺织废料收回羊毛纤维的新方法。

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The Vellus Aureum wool fibers must measure a mere 13.9 microns (closer to the fineness of a cobweb).

WSJ: Ermenegildo Zegna Spins Fashion Gold | WSJ. Magazine May 2013

Standing in bright sunlight filtered through the dirty windows of a giant self-storage warehouse in Queens, New York, Kevin Sudeith unfurls one carpet after another, unleashing a cloud of wool fibers and mothball fumes.

FORBES: Magazine Article

It was a piece of wool interwoven with lycra fibers to give it natural stretch.

WSJ: A Homegrown Fashion Mogul