Just as electrical energy generates heat when it meets resistance so our psychic energy generates tension and stress when it has to flow through areas that aren't our preference.

就像电子遇到了电阻时能量产生热量那样，当我们的心理能量流向不喜欢的领域时，我们就会产生紧张和压力。

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These are materials which can translate electrical fields into mechanical stress, or vice versa.

这类物质可将电场和机械压力相互转换。

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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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Both extremely hot and cold temperatures stress our electrical grid to the breaking point, and there is precious little in reserve.

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The outer two layers are made up of PZT-5H - a ceramic substance that produces an electrical charge when mechanical stress is applied.

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