In center of mass system, solved problem of two body had merits of symmetry form, brief description and high precision.
在质心系中，解决两体问题，具有形式对称，描述简洁，精确度高等优点。
This paper analyses the two body problem of kinematical equation and discusses the elastic collision between two particles in the center of mass system.
用质心坐标系分析了二体问题的运动方程，并用质心系讨论了两个粒子间的弹性碰撞问题。
I'm going to explain to you now what we physicists mean by center of mass of a system.
我现在给你们解释，物理学家说的系统重心。
Where is the center of mass of this system?
这系统的重心何在？
And so going to the center-of-mass system, you can always immediately calculate what the maximum heat is that you can expect from a collision.
现在看质量重心体系，你可以很快计算出，最大的热量是多少，你可以从碰撞中得到的。
The center of mass of a system is defined as follows: I have here some kind of an object not just a point mass, but it has a finite size.
系统的重心,是这样定义的：,我有一个物体,不是有棱角的物体，但它大小有限。
In the absence of any net external forces - on a system as a whole — - as we discussed last time — the center of mass will always have the same velocity.
在没有外力，作用于整个系统时-，我们上次讨论过-，重心总是，有相同稳定的速度。
Ten kilograms is ten meters below the rope, so clearly the center of mass of the system as a whole will be below the rope.
绳子下方10米10公斤，所以很明显，重心，将会在绳子下方。
A design on the testing system of mass center of engines, including its software and hardware are described in detail.
介绍了发动机质心测试系统的基本构成以及其软硬件的设计实现。
There are the entire vehicle mass, the position of mass center, cornering stiffness coefficients, steering - system stiffness and steering ratio.
这些基本参数包括整车质量、质心位置、前后轮侧偏刚度、后轴侧倾转向系数以及转向系刚度和传动比等。
A stellar system consisting of two stars orbiting about a common center of mASs and often appearing AS a single visual or telescopic object.
由两颗围绕一个共同的中心运行的星组成的星系，经常可用肉眼观看或用望远镜可观察到。
Along with the wide application of the Urban traffic control (UTC) system, traffic control center can collect a mass of traffic flow data.
随着城市各种交通控制系统(utc)的广泛应用，交通控制中心能够采集大量的交通流数据。
There from it is used to obtain the principles of the angular of momentum of the system of particles with respect to its cenier of mass and instantaneous center of velocity.
采用简捷的方法推导质点系相对于任意动点的动量矩定理，并由此引出质点系相对于质心的动量矩定理和质点系相对于速度瞬心的动量矩定理。
Then obtaining the whole car dynamics parameters based on mass center coordinates formula of space force system and torque translation theorem.
再根据空间力系质心坐标公式和力矩平移定理求得整车的动力学参数。
A integrated equation set for solving plane parallel motion of rigid body was derived, and the conditions of system of forces simplified on the center of mass plane was discussed.
给出了解决刚体平面平行运动问题的一组完整方程，讨论了力系简化在质心平面内的条件。
The system is made up of the measurement of axial weight, wheel weight, dip angle, center-of-mass position and so on.
该系统由测量轴重、轮重、侧倾稳定角、质心位置和驻坡度等功能软件组成。
As to the conservation of motion of center of mass, the method of absolute coordinate system is generally used in the teaching meterials of theoretic mechanics.
对于质心运动守恒问题，理论力学教材中一般用绝对坐标法进行计算。
As to the conservation of motion of center of mass, the method of absolute coordinate system is generally used in the teaching meterials of theoretic mechanics.
对于质心运动守恒问题，理论力学教材中一般用绝对坐标法进行计算。
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