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More on this storyExperts reveal fragments from rare Iron Age helmet。heLLoword翻译官方下载对此有专业解读
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).，更多细节参见Line官方版本下载