panel front rail 前围板
automobile front rail 汽车前纵梁
front skirt rail [车辆] 前围裙边梁
front cross rail 前横档 ; 织机
front top end rail 前端上梁
front toend rail 前端上梁
Target acceleration pulse is achieved to improve structural crashworthiness and decrease occupant injury criteria by optimization of vehicle’s front rail structure.
可通过对前纵梁的结构进行优化取得理想的车体碰撞加速度波形,从而提高车体结构的碰撞性能,降低乘员的伤害指标。
参考来源 - 轿车碰撞性能试验分析及车身结构安全性研究·2,447,543篇论文数据，部分数据来源于NoteExpress
There are only a front rail of a bridge.
最前面有一座只有铁路的大桥。
Therefore, the structural design of vehicle front rail crashworthiness in the frontal crash has a great engineering significance.
因此，前纵梁的结构耐撞性设计在汽车正面碰撞中具有十分重要的工程意义。
Those who could not find transportation had to travel the 140 miles to the front on foot, since the rail line had been destroyed.
因为铁路线被毁，那些没有运输工具的士兵只得步行140英里开往前线。
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