研究碰撞过程中速度与能量的关系对于现代道路交通事故的处理具有重要指导意义。
Research on the relation between velocity and energy in crash has guiding significance for dealing with the road traffic accident.
随着现代社会经济的飞速发展，有效的城市道路交通管理在人们的经济、社会活动中的重要性日益显著。
With the rapid development of modern social-economic, the importance of effective urban road traffic management has become more and more notable in our daily life.
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