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.
Explore more offers.
,更多细节参见服务器推荐
2014年,曾燕红首次加入了女子登山队,在随后的两年连续遭遇了雪崩和尼泊尔大地震,曾燕红也受了重伤,抱憾而归。,详情可参考51吃瓜
articles of up to 10k words