混合交通是中国城市交通的主要特征，机动车、非机动车与行人的特性各异，相互干扰严重。
Mixed traffic is a main characteristic of Chinese urban traffic. Motorized vehicle, non-motorized vehicle and pedestrian own different specialties and interference among them is seriously.
研究了交通事故中汽车风挡玻璃的吸能特性对行人头部的保护。
In traffic accidents, the energy absorption ability of windshield has an important influence on the protection of human head.
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