Escape velocity is simply the speed of an object that's shot out of a cannon the minimum initial speed so that the object could later escape Earth's gravity on its own.
逃逸速度就是一个物体的速度，比如说，从加农炮中射出的最小初始速度，这样这个物体以后就可以自己脱离地球的引力。
So to get into the center-of-mass frame, you must subtract the velocity of the center of mass from the initial velocities.
要进入重心体系，你就必须减去速度，重心的速度，从原始速度中减去。
Next, create your dynamic body, which has a position, initial linear velocity, and angle.
接下来，创建动态物体，它具有方位、初始线速度和角度。
Different methods are described to measure sludge sedimentation and filtration properties, by use of sedimentation indices, initial sedimentation velocity and capillary suction time.
利用沉积作用，最初的沉积作用速度和吸附时间，描述测量烂泥沉积作用和过滤产物的不同方法。
The hydrodynamics of particle agglomeration flow was numerically simulated at the different inlet gas velocity, initial particle size distribution and type of agglomeration mechanisms in the absorber.
对不同入口气体速度、初始颗粒尺寸分布和不同颗粒团聚形成机理下收集器内颗粒聚团流动的流体动力特性进行数值模拟。
Meanwhile, the influences of pipeline internal pressure, wall thickness, crack arrest length and initial crack velocity on the crack driving force (crack propagation) are further studied.
进而分析了管道内压、壁厚、裂纹止裂长度和初始裂纹速度对裂纹驱动力(也即裂纹扩展)的影响。
Now I go to my next initial condition, -3 that the velocity is minus 3.
现在用，另一个初始参数，也就是速度等于。
Finally, it validated established model with each point displacement velocity chart, analyzed and summarized the established of state equation and selection of initial value at the same time.
并采用各点点位位移速度图对所建立的函数模型进行验证，同时对状态方程的建立及初始值的选取进行分析总结。
Using the optimal control theory an optimal control law of agile turn is proposed enabling to eliminate velocity component in vertical director of initial sight under thrust vector control.
应用最优控制理论，提出一种最佳快速转弯控制律，能在推力矢量控制下消除终端时刻垂直于初始视线方向上的速度分量。
Meanwhile the effect of the initial electron velocity on the movement track is also studied.
同时研究了电子的初始出发速度对电子运动轨迹的影响。
The effect of initial attack angle and pitching angular velocity on the selection of release angle is remarkable.
得到标枪的初始攻角和俯仰角速度对出手角度选择的影响较显著。
The effect of particle size and initial velocity on the particle motion behavior is discussed.
并讨论了粒子的尺寸、初始速度的大小和方向对粒子在叶栅内运动特性的影响。
Deformation velocity has no obvious effect on the flow of material, initial yield stress and flow stress.
变形速度对材料流动、初始屈服应力、流动应力影响不明显。
It showed that space dimension could have a lot of influence on the safety evacuation performance of buildings based on the same crowd density load and the same initial expected velocity.
在同样的人员负荷、人员密度和人员初始期望速度情况下，空间几何尺寸对人员流动安全性有一定的影响。
The present attention is mainly focused on the effect of initial deflection, impact velocity and coupled stiffness.
分析了初始挠度、冲击速度、耦合刚度等因素对临界轴向缩短量的影响。
Displacement, Initial velocity, Final velocity, Acceleration and Time.
位移，初速度，末速度，加速度和时间。
The initial cavity, ballistic trajectory and velocity attenuation of the sphere pellets are similar at different water-entry angles and initial velocities.
在一定的入水角与速度范围内，球形弹丸入水初期弹道的空泡特性、弹道轨迹以及速度衰减规律具有一定的相似性。
The air velocity has little effect on the initial frost crystal shapes.
空气流速对初始霜晶形状的影响不大。
Conversely, if I knew the velocity of this object, I also know what time it is, provided I knew the initial velocity.
反过来，如果我知道了这个物体的速度，我也同样可以知道时间，只要初速度是已知的。
It is found that the star_shaped nozzle jet has a shorter initial section and slower velocity attenuation along the jet centerline in the main region than the round nozzle jet.
实验发现，星形喷嘴射流与普通圆射流相比，其射流初始段较短，但基本段内速度随喷距衰减的速率较低。
Create an empty game object named PhysicsTest and add script PhysicsTest to it and set both, cube reference and initial velocity of it.
创建一个名为“物理测试”的空游戏对象并添加“物理测试”脚本，并设置它的方块引用和初始速度。
Up to now, there are about 100 non-viscosity initial velocity formulas which have been put forward.
到目前为止一百多年来，所提出的无粘性颗粒的起动流速公式已在100个左右。
Then, the calculating method of initial scour velocity of bed sand around submerged spur dikes is suggested.
在分析基础上，提出了漫水丁坝坝头床沙起冲流速的计算办法。
The bus goes over a bump. Its velocity is initial horizontal but it acquires a small upwards component as it rises, then a downwards component, then back to being purely horizontal.
当汽车驶过一个小包时，上坡时原本是水平的速度获得了一个小小的向上的分量，下坡时又有了一个向下的分量，然后回归水平。
The initial adhesion and drying velocity of the modified starch are compared with those of the usual starch adhesive.
讨论了变性淀粉粘合剂的初粘力，干燥速度等并与普通淀粉粘合剂作了比较。
Whether the rocket is launched vertically, or at some initial Angle, it reaches its minimum velocity at the peak of its trajectory.
是否是火箭垂直发射，或在一些初步的角度来看，达到其最低速度的高峰期，其轨迹。
The problem is considered as dynamic response of the structure subjected to specified initial velocity or impulse load, with large deformation and plasticity.
问题被当作结构在规定初速度或脉冲载荷作用下的非线性(大变形与弹塑性)动反应。
Though adopting two different calculation, the relation of initial gas and particle velocity ratio and movement time and kinematic range in accelerating zone was gained.
通过两种不同计算，得到气固速度比与固粒群的加速区的运动时间和距离的关系。
This paper introduces methods of calculation the initial orbit of the satellite only with the velocity vectors of two epochs.
本文介绍了仅用卫星两个时刻速度向量计算卫星初轨的方法。
The calculation results prove that unless the initial film thickness or the relative velocity is very large, the inner evaporation drag should be taken into account at high temperature conditions.
计算结果表明，除非初始汽膜厚度或相对速度很大，否则计算高温颗粒在液面下运动的阻力时必须要考虑蒸发阻力。
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