const posToTime = new Map(); // 位置 → 到达终点的时间（避免重复计算）
据小米汽车官方介绍，「赤霞红」灵感来自破晓时分的霞光，以高纯度、高饱和度的正红色为基底，并加入细微金属鳞片，使车身在不同角度呈现流动感与立体光泽。，详情可参考Line官方版本下载
，这一点在safew官方版本下载中也有详细论述
Source: Computational Materials Science, Volume 266，更多细节参见同城约会
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