Shortcut Pre-calculation: For the most commonly used speed profiles, the travel costs (time/distance) for shortcuts between border points within each cluster are pre-calculated and stored. (Each border point effectively has an "entry" and "exit" aspect for directed travel).
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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WPS官方版本下载
Москвичей предупредили о резком похолодании09:45
新华社北京2月25日电 （记者冯歆然）2月25日中午，国务院总理李强在北京人民大会堂同来华进行正式访问的德国总理默茨举行会谈。