实验结果表明，当撞击速度较低时，弹体头部发生镦粗变形；
The results show that, with a relatively low impacting velocity, plastic deformations occur at the noses of the projectiles;
反映了组织损伤程度受弹片的形状、质量、撞击速度等的相互影响。
Our results prove that the severity of tissue damage resulting from fragment injury is closely related to the shape, mass and impact velocity of the fragments.
得到了撞击速度与撞击形变场的关系曲线，可作为陨石撞击研究的重要依据。
The relationship curves between impact velocity and deformation field are obtained, which can be an important base of the research for meteorite impact.
结果表明，弹丸撞击速度一定时，弹坑深度和弹坑直径均与弹丸直径呈线性关系。
The results show that the depth and diameter of craters change linearly with the projectile diameter when the impact velocity is a constant.
当长杆射弹和撞击速度都相同时，与侵彻钢纤维混凝土靶相比，含单层密排刚玉球的钢纤维混凝土靶中的侵彻深度大约降低了11%，而水泥砂浆石靶中的侵彻深度增加了12%。
The penetration depth into SFRC with the board is decreased about 11%, but the penetration depth into cement mortar is increased about 12% as compared with that into the SFRC.
因此速度改变量和撞击时间,才是重要的。
So what matters is this changing velocity and the impact time.
在上世纪70年代，加速器能够增强速度，因此也能给粒子增强能量，但仅能使粒子撞击到一个固定目标上。
In the 1970s accelerators were capable of ramping up the speed and thus the energy of particles, but could only smash them into a stationary target.
对宇宙飞船的船员来说，速度升高到光速，宇宙空间将被高度压缩，因此增加了撞击飞船的氢原子数量。
For the crew of a spacecraft ramping up to light speed, interstellar space would appear highly compressed, thereby increasing the number of hydrogen atoms hitting the craft.
大气层外极薄的微粒层会撞击进入减慢轨道物体的速度。
A whisper-thin veil of molecules at the atmosphere's outer reaches bumps into and slows down orbiting objects.
先前的探测器使用降落伞降低下降时的速度，砸向地面时有安全气囊缓冲撞击的影响。
Previous rovers have deployed parachutes to slow their descents, and have then crashed into the ground using airbags to cushion their impacts.
本文介绍了投梭转子与投梭鼻之间撞击的动力学分析，包括速度变化、动能转换及弹性冲击的分析等。
The article makes a dynamic analysis of the impact between the picking bowl and the nose, including the speed variable, the energy transfer and elastic impact.
更糟糕的是：落差大，很容易达到最高速度- - -您的速度越快，双脚撞击地面越厉害，肌肉承受的冲击越大。
To make matters worse: it's easy to hit top speed on a steep descent-and the faster you move, the harder each foot strikes the ground, and the more pounding the muscles endure.
假如这些冰层因撞击的物体而迅速汽化蒸发的话，那么膨胀的气体很有可能帮助弹射出去的碎片达到逃逸速度。
If the ices had been rapidly vaporized by an impacting object, the expanding gases might have helped the ejected fragments reach escape velocity.
白垩纪末期，当小行星撞击地球使得地表上的光合作用停止。生长速度较快的恐龙无法在这场危机中幸免于难。
Fast-living dinosaurs were unable to survive the crisis at the end of the Cretaceous, when an asteroid hit Earth and brought photosynthesis to a halt.
发生在飞机起降时的飞机失事通常是在较低速度下，并且有着较为平缓的撞击角度。
Accidents occurring during takeoff and landing generally occur at slower speeds and gentler Angle of attacks.
本文报道了五种规格充满水的圆柱壳经受大质量低速度轴向撞击作用时屈曲过程的实验结果。
Experimental results for the buckling process of cylindrical shells fully filled with water under axial impact are reported.
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.
研究了梁以一定初始速度(冲量)撞击固定支座的动力响应问题。
The dynamic responses of the beam impacting on the fixed supports with an original velocity (impulse) were investigated.
首先采用有限元法，将撞击体离散成由三维实体单元构成的具有一定初始速度的离散质量系统，对靶板采用二维壳单元离散。
According to Finite Element Method, the impactor is considered as a discrete mass system in terms of 3D solid element with initial velocity, and 2D shell element is used for target plate.
在高速流动的流体和静止流体撞击位置，流动速度出现间断，该速度间断的位置不断向液滴冲击区域外扩展。
At the striking position of the high-speed fluid to the static fluid, a velocity discontinuity appears, which propogates outwards in the film.
算例中，讨论了撞击物的速度、壳体的几何参数以及接触点的位置对浅球壳非线性动力响应的影响。
In the numerical calculation, the effects of striking object's initial velocity, and the shells 'geometrical parameters and the point of contact on the dynamic response of shells are discussed.
算例中，讨论了撞击物的速度以及壳体的几何参数对浅球壳非线性动力响应的影响。
In the numerical calculation, the effects of striking object's initial velocity and the shells 'geometrical parameters on the dynamic response of shells are discussed.
撞击杆必须能够以足够的速度经管柱落下，以便给予起爆所需的力。
The drop bar must be capable of falling through the string with sufficient speed to impart the necessary force for detonation.
建立有限元模型，对平板条叶片以不同角度和初始速度撞击矩形靶板的过程进行了数值模拟。
Numerical simulations of the course of the plate blade impacting target with the different angles and the initial velocity were performed based on the finite element model.
我们这里所说的防撞围栏可以承受重量为7.5吨的交通工具以每小时40英里的速度所带来的撞击。
The crash-rated cycle stand, shown here, can withstand the impact of a 7.5-metric-ton vehicle at 40 miles per hour.
我们这里所说的防撞围栏可以承受重量为7.5吨的交通工具以每小时40英里的速度所带来的撞击。
The crash-rated cycle stand, shown here, can withstand the impact of a 7.5-metric-ton vehicle at 40 miles per hour.
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