Okay, I start off, point A is at a distance h h above this level, and so I apply now the conservation of mechanical energy.
好的我开始了，点A距离这个平面,高度差，现在运用,机械能守恒定理。
The shortest path problem in complex networks and graphs can be easily solved by labeling the distance between current point and start point during depth- first- search.
采用深度优先搜索法，文章首次提出了在搜索过程中采用标记距离的算法，有效地求解复杂网络和图的最短距离问题。
Time measurement is from the precise time of crossing, distance measurement is from the centre point of the start line.
时间的测量是从穿越的时间开始，距离的测量是由起跑线的中心点。
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