The Wright brothers did this using a system called wing warping, which relied on pulleys and cables to twist the wings into a different shape.

莱特兄弟通过使用一种叫做机翼变形控制（Wing Warping）的系统解决了这个难题，这个系统靠滑轮和绳索使机翼改变成不同的形状。

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Invest tin quality shoe trees. They will maintain the shape of your nice work shoes, prevent the leather from warping or cracking.

购置一些质量好的鞋撑。他们会让鞋子保持原有的形状，防止皮鞋变形或者开裂。 。

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