High-speed imaging reveals that the squeak of soft–rigid frictional interfaces, like sneakers sliding on a basketball court, arises from intersonic opening slip pulses—analogous to earthquake ruptures—that thin ridges on the rubber confine to repeat at a musical frequency.
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週一空中技巧決賽期間，見她與前國際奧委會主席托馬斯·巴赫（Thomas Bach）並肩觀賽。。业内人士推荐WPS下载最新地址作为进阶阅读