"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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据这位玩家所述，他收到这份快递并开箱检查时发现软盘已经损毁。他表示，是美国海关人员拆除了包装缓冲材料，导致磁盘损毁。这位玩家还发布了发货前的照片，显示寄件人已尽最大努力妥善包装。
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