使用安全带可以减少高达75%事故伤亡率。
Using back seat belts reduce casualties in fatal accidents up to 75%.
本文论述的方法，可以作为宏观技术系统事故伤亡率预测的标准化方法。
The method proposed in the paper can be viewed as the standardization one for the forecast of accident injury and death rate.
大客车的碰撞安全性问题是近几年来人们普遍关注的问题，而客车的翻滚碰撞是事故伤亡率较高的一种情况。
Collision safety of bus has been paid much attention in recent years, roll-over collision is one of the highest casualty ratio condition in traffic accidents.
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