A woman who has spent nearly all her life in Qaanaaq stands in my green prefabricated wooden hut, on the vast polar bear and musk-oxen skins that cover the floor.

我借住在卡纳克一座绿色预制的木屋里，地板上铺着用北极熊和麝香牛皮制成的大块地毯，屋外铁架上晾晒的鲸脂散发出刺鼻气味。

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The flexible skins must have substantial in-plane expansion deformability, while at the same time it must be able to bear the out-of-plane aerodynamic loads.

机翼的蒙皮要有足够大的面内伸缩变形能力，同时还要有足够的面外承载能力。

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Many argue that the prices paid for polar bear skins have increased markedly in recent years.

BBC: Polar bear trade ban 'too close to call'