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Investigation under way after vehicle ploughs into building
"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.。WPS官方版本下载对此有专业解读
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The selected acts will be revealed in April, and the star-studded induction ceremony will take place in Cleveland, Ohio, in the autumn.。业内人士推荐一键获取谷歌浏览器下载作为进阶阅读
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