An article in Science reports an exceptionally warm and thin sweater knitted from stretchy aerogel fibres, whose core–shell structures are inspired by the fur of polar bears.

中文翻译：

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像北极熊一样舒适

《科学》杂志上的一篇文章报道了一种由弹性气凝胶纤维编织而成的异常温暖和薄的毛衣，其核壳结构的灵感来自北极熊的皮毛。