研究结果表明，适当降低保险杠高度，可减少行人下肢损伤风险。
The numerical results indicated that the depressed bumper height can reduce the risk of lower extremity injury.
要使碰撞损伤最小，制造汽车保险杠的最佳材料是什么？
What is the best kind of material to make a car bumper out of to minimize damage in a crash?
要使碰撞损伤最小，制造汽车保险杠的最佳材料是什么？
What is the best kind of material to make a car bumper out of to minimize damage in a crash?
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