它们被聚集起来投入实验，此时速度大约是5米每秒——仅为空气中分子自由碰撞速度的百分之一。
They are gathered up and injected into the quantum experiment at speeds of around five meters per second - just a hundredth the speed of the molecules flying around in the air.
建立碰撞模型求解碰撞速度是交通事故再现的关键步骤。
A key step of accident reconstruction is to establish impact models for calculating the impact velocity of vehicles.
为交通事故再现推测碰撞速度提供了一种简单实用的方法。
The methods give a simpler way to evaluate collision speed in traffic accident reconstruction.
本文根据动量平衡和动量守恒定律的基本原理，提出了两种推算碰撞前汽车动量或碰撞速度的图解方法。
Based on momentum balance and the law of momentum conservation, two new graphic methods are developed to determine the pre-impact vehicle momentum or collision speed in this paper.
该方法可用于分析典型的交通事故碰撞速度。
The method can be applied widely in traffic accident reconstruction.
然后用不同方法求出一个事故案例的汽车碰撞速度。
Then the collision velocity of a real accident example is estimated using different methods.
交通事故碰撞速度的判断是事故再现的重要内容之一。
The judgement of motor vehicle collision velocity is an important problem in traffic accident reconstruction.
该模型可以对实际的事故进行再现分析和车辆碰撞速度估算。
Thus, the simulation model can estimate the vehicle velocity in pedestrian-vehicle accident and can be applied to a real traffic accident reconstruction.
通过回归分别建立了碰撞速度、碰撞角度与平曲线半径及转向、运行速度、硬路肩宽度的相关模型。
The models of collision speed and collision Angle relating to horizontal curve radium and its direction, hard shoulder width and operation speed are derived by regression.
在此基础上计算得出行人头部及下肢伤害与汽车碰撞速度的变化关系，可为改善汽车的行人安全性提供参考。
Based on those results, the relationship between pedestrian's head and leg injuries and car impact velocity was studied which can provide references for improving cars' pedestrian safety.
动量守恒定律告诉你,碰撞后速度是多少。
So the conservation of momentum tells you what the speed is after the collision.
他们认为，如果驾驶员前方车体部分的尺寸能够达到几英尺长，就能消散碰撞产生的能量，降低速度变化的突然性。
With several feet of car body in front of the driver, the energy of a crash can be dissipated and the suddenness of the change in velocity can be reduced, they say.
在非热逸过程中，由于化学反应或粒子与粒子之间的碰撞，原子因受到弹射而达到逃逸速度。
In nonthermal escape, chemical reactions or particle-particle collisions catapult atoms to escape velocity.
之所以选择这样的速度范围，是因为大多数的碰撞都在此范围内发生，尤其是低速行驶时的追尾事故。
This speed range was chosen because it is when most collisions take place, especially rear-end shunts in slow-moving traffic.
本文介绍了一种用碰撞法测量复合动作电位传播速度分布专用仪器。
This paper introduced a special instrument for measuring the propagation velocity distribution of com-pound active potential using collision method.
本文导出了混合理想气体中分子相对速度的分布，并由此计算了混合理想气体中分子的碰撞频率和平均自由程。
At present paper, we deduced the relative velocity distribution of mixed ideal gas molecule. Then we got the average collide frequency and average free distance.
用物体与气体分子碰撞模型来分析物体的收尾速度以及所受空气阻力。
By the falling body with the gas molecular collision model, the resistance of a falling body is received, and the extreme speed of the falling body is analyzed.
碰撞检测技术是虚拟环境中的一项关键技术，它的速度和准确性影响虚拟环境的真实感和沉浸感。
Collision detection is one of the key techniques in virtual environments, and its speed and accuracy greatly influences the reality and sense of immersion.
当大型强子对撞器达到它操作的最大限度时——这个月早些时候它为碰撞发生的速度设置了一项新记录——离奇古怪的结果必然会越来越频繁地意外出现。
As the LHC reaches its operational capacity-earlier this month it set a new record for the rate at which collisions occur-curious results are bound to crop up more and more frequently.
利用夫兰克-赫兹实验仪测量了电子气体的速度分布函数，并分析了电子与氩原子碰撞的动力学过程。
The velocity distribution function of the electron gas is measured by using Franck-Hertz experiment instrument, and the dynamical process of collision between electron and argon atom is analyzed.
推导了基于NASA标准解体模型的碎片分离速度概率密度函数，建立了计算航天器与单颗碎片碰撞概率的时间积分算法。
Space debris delta-velocity probability density function was deduced by NASA's standard breakup model, and time integral algorithm of collision probability between spacecraft and any debris was built.
针对单个粒子相同入射速度不同入射角度的碰撞条件，探讨粒子与基体的结合强度、侵彻深度以及绝热剪切失稳的发生条件。
The join strength, penetration depth and condition of emerging adiabatic shear instability are discussed with single particle of uniform speed and different angle.
碰撞后的速度，依惯例，是有撇号的。
Now, the velocities after the collisions, by convention, are primed.
而且，在船舶与闸门碰撞过程中，还要受到很多因素的影响，比如，船与闸门碰撞的相对位置和速度、碰撞部位以及环境条件等。
And during the collision, many factors can affect collision result such as the relative position and velocity, the location of the collided strobe, and the environment condition, and so on.
本研究采用遮挡范式，考察了专职公交车驾驶员对不同类型、速度和方向运动物体的碰撞时间(TTC)估计。
The occlusion paradigm was applied to investigate the time-to-collision (TTC) estimation of full-time bus drivers under the conditions of vehicle types, speed and directions of the moving objects.
平均速度的上升与发生碰撞事故的可能性以及碰撞后果的严重性直接相关。
An increase in average speed is directly related both to the likelihood of a crash occurring and to the severity of the consequences of the crash.
实验证明，此算法有效地提高了碰撞检测的速度，保证了虚拟动态加工环境中碰撞检测的实时性。
The experiments illustrate that the algorithm accelerates the velocity of collision detection and ensures the real-time requirement of collision detection in virtual dynamic machining environment.
通过测量因纳斯卡板块挤压海岸发生碰撞造成的地面的缓慢上升与下降，他们能够估算压力的实际聚集速度。
By measuring the slow rising and falling of the ground as the inexorable collision of the Nazca plate squeezed the coast, they could calculate how fast strain was actually building.
通过测量因纳斯卡板块挤压海岸发生碰撞造成的地面的缓慢上升与下降，他们能够估算压力的实际聚集速度。
By measuring the slow rising and falling of the ground as the inexorable collision of the Nazca plate squeezed the coast, they could calculate how fast strain was actually building.
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