面对年夜饭和全家福，很多人总发愁手机不够好，甚至动了买相机的念头——其实大可不必，对于大多数人来说，最好的相机，其实是手头拿着的手机。
"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.，这一点在safew官方版本下载中也有详细论述
This story was originally featured on Fortune.com。关于这个话题，heLLoword翻译官方下载提供了深入分析
黎智英欺詐案上訴得直：定罪及刑罰被撤銷，出獄時間提前