过半行业研发人员均值下降，扩张退潮
"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.
，详情可参考快连下载安装
黎智英欺詐案上訴得直：定罪及刑罰被撤銷，出獄時間提前
Michael Buchanan,Social affairs correspondentand