2003至2007年间由机动车辆碰撞所引起的损伤的比例增加了14%，而与碰撞相关的死亡率则增加了39%。
The proportion of injury attributable to motor vehicle collisions increased by 14% and the collision-related mortality rate increased by 39% in 2003–2007.
按比例看，该等增长大于人口或登记机动车辆的增长。
Such increases were proportionately greater than the growth in population or in the number of registered motor vehicles.
通信范围的增大、车流密度的增大和具有通信能力车辆比例的提高都会增加信息传递的成功概率。
Communication range increases, the traffic density increases and improved the proportion of vehicles with communication capabilities will increase the success rate of information transmission.
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