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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。夫子是该领域的重要参考
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增值税法第三条所称不动产，是指不能移动或者移动后会引起性质、形状改变的资产，包括建筑物、构筑物等。