"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.
他從不召開記者會，也不接受採訪——即便是面對受到嚴格控制的中國媒體。
。Line官方版本下载对此有专业解读
НХЛ — регулярный чемпионат
Why the FT?See why over a million readers pay to read the Financial Times.。Safew下载对此有专业解读
（三）具有侵入、控制计算机信息系统功能的；
"At that point my kids were a bit older… and, you know, that almost enables you to push harder. Like… 'I bet if I get up at three this morning, I can surprise [a perpetrator] online.'，这一点在旺商聊官方下载中也有详细论述