When they detect an extended dry period, they divert their metabolisms, producing sugars and certain stress-associated proteins and other materials in their tissues.

当它们发现干旱期延长时，它们会改变自己的新陈代谢，在它们的组织中产生糖和某些与应激相关的蛋白质和其他物质。

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Scientists have long known about naturally occurring piezoelectric materials, which have the ability to transform electrical energy into physical stress and vice versa.

长期以来科学家一直对压电材料的性质产生浓厚兴趣，这些材料可以将电能转化成为物理压力，反之亦然。

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For the Ergon Biokork bike grip, the designers spent time honing the shape, to reduce hand stress — but they lavished care on the materials as well, to make sure they were all renewable.

Ergon Biokork车把的设计师花了大把时间琢磨其形状以降低手部压力。但他们也非常注重其用材，以保证其可更换性。

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