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.
“一抓一大把，一煮一大锅，一喝一大碗”曾是很多人对传统中药的刻板印象。2015年6月，广东省中医院推出“智慧药房”，为患者提供中药代煎、配送等服务。
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