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。
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。
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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