關恆坦言，在拍攝的過程中感到害怕，也意識到這樣的拍攝具有風險。這個過程，歷時三天。
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.，详情可参考safew官方下载
，这一点在旺商聊官方下载中也有详细论述
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Gear editor Julian Chokkattu has spent five years testing more than 45 electric scooters. These are his top picks that are also on sale right now.，更多细节参见爱思助手下载最新版本