撞击速度 [
zhuàng jī sù dù]
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striking velocity
- 当列车在正常运行时,车体有足够的强度和刚度,需要满足有关规范规定的强度、刚度要求;在较高速下发生碰撞事故时,吸能结构能够沿所需方向产生塑性大变形吸收足够冲击动能,保证机器间和乘客区不发生破坏,并延缓碰撞作用时间,降低碰撞瞬间最大减速度,使撞击减速度在人体承受范围内。
Once collision accident occurred when the train is moving with fairly high speed ,the energy-absorbing structure produces large plastic deformation along the direction needed to absorb sufficient energy,at the same time,the deceleration must be controlled within the endurable limits to human body. - 之前的测试中,车辆是以每小时5英里的速度撞击障碍物和杆柱。
Previously, cars were tested against flat barriers and poles at five mph. - 大多数船只在下沉过程中就已破碎,并以每小时100英里的速度撞击海底,因此成为乱糟糟的一团。
Most ships break up on the way down, hit the bottom at about 100 miles per hour, and become a chaotic, confusing jumble.
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