EU leaders should not rush to revamp green-hydrogen rules

· · 来源:cc资讯

"Tuning frictional behavior on the fly has been a long-standing engineering dream," said co-author Katia Bertoldi of Harvard University. "This new insight into how surface geometry governs slip pulses paves the way for tunable frictional metamaterials that can transition from low-friction to high-grip states on demand.” In addition, the dynamics revealed by these results are similar to those of tectonic faults and thus give scientists a new model for the mechanics of earthquakes, according to their new paper published in the journal Nature.

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专为函数调用而生 — 并非通用聊天工具,更多细节参见旺商聊官方下载

63-летняя Деми Мур вышла в свет с неожиданной стрижкой17:54。WPS官方版本下载对此有专业解读

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