应用物理学中的质量守恒定律、牛顿第二定律、动量定律等，建立了交通流的连续性方程、欧拉方程和动量方程；
Conservation of mass, second Newton's law, and momentum law are introduced into traffic flow to set up traffic continuity equation, Euler's equation, and momentum integral equation.
例如，无论一个舞者多么想要跳离地板，然后开始旋转，角动量守恒定律绝对阻止这样的动作。
For example, no matter how much a dancer wishes to leap off the floor and then start turning, the law of conservation of angular momentum absolutely prevents such a movement.
物理学一条基本定律认为动量守恒，也就是说，除非外力进入系统，否则总动量一定保持不变。
A fundamental law of physics holds that momentum is always conserved, meaning that unless some outside force enters a system, its total momentum must stay constant.
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.
不知怎么的，这一定律和,角动量守恒定律有所相似。
Somehow, it has the smell of some conservation of angular momentum.
其结果，其中一些方程非常眼熟，比如动量守恒定律和牛顿第二定律。
Turns out, some of these equations were very familiar: the law of conservation of momentum, and Newton's second law of motion.
这是我们第一次，在这种系统里使用，角动量守恒定律。
Now we're going to apply for the first time in systems like this, the conservation of angular momentum.
牛顿第二定律，动量定理。
论述了应用最大熵原理及质量、动量和能量守恒定律到喷雾过程中，导出了液滴尺寸和速度分布规律。
This paper reports a derivation of distribution by applying maximum entropy principle and conservation laws of mass, momentum and energy to atomization process.
应用最大熵原理和动量守恒定律，从理论上建立了喷雾液滴尺寸和速度联合分布函数。
A droplet size and velocity distribution function was theoretically derived based on the maximum entropy principle and the momentum conservation law.
利用动量守恒定律分析质点组问题时，必需注意质点组各质点速度的空间统一性和时间统一性。
It's necessary to pay attention to the unity of time and space for each particle velocity, when analysing the question for particle system use momentum conservation law.
根据气体瞬变流动过程中所遵循的质量、动量和能量守恒定律建立描述气体瞬变流动的数学模型。
It constructs a mathematic model to describe gas transient flow according to the mass, momentum and energy conservation law.
理论分析和数值试验的结果都表明，本模型严格地满足质量守恒定律和动量定理。
The theoretical analysis and numerical tests both show that this model strictly obeys the conservation law of mass and momentum.
牛顿第二定律实质上是动量连续性方程的积分形式，因而，力可以被理解为动量流。
Forces can be visualized as momentum currents, for Newton's Second Law is equivalent to the continuity equation for momentum in integral form.
角动量守恒定律，可以用回转器来演示。
The law of conservation of angular momentum may be demonstrated with a gyroscope.
我们就是这样利用能量和动量守恒定律的。
We exploit the energy and momentum conservation laws in this way.
介绍了动量守恒定律建立的历史过程，对动量守恒定律进行了讨论，并对动量守恒定律存在的内在实质作了探讨。
This paper introduces the history of conservation law of momentum, and discusses the conservation law of momentum and the substance of conservation law of momentum.
本文从爱因斯坦速度变换式、相对论中的牛顿第二定律及普遍的能量守恒定律导出质点组的动量守恒定律。
In this paper, the conservation law of momentum is derived from Einstein's transformation law of velocities, Newton's second law in relativity and general conservation law of energy.
基于质量、动量和能量守恒定律及井筒径向传热理论建立了流体压力、温度分布预测数学模型。
Based on mass, momentum, energy conservation and the theory of wellbore radius heat transmission, established fluid pressure and temperature distribution prediction mathematical models.
分析讨论了角动量守恒定律在空翻、转体以及旋空翻等竞技动作中的具体应用。
This paper analyzes and discusses specific application of the conservation law of angular momentum in competitive sports, such as aerial tumbling, trunk rotation and somersault.
根据动量守恒定律，建立了摩托车与汽车正面碰撞及直角侧面碰撞的数学模型。
Based on the law of momentum conservation, the mathematics patterns of front collision and vertical side collision of motorcycles and motor vehicles are developed.
利用简单对称性的电磁场，讨论了场和电荷系统遵从的动量守恒、量矩守恒定律。
With a simple symmetrical electromagnetic field, the law of conservation of momentum and the law of conservation of angular momentum for electromagnetic field and charges system are investigated.
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.
本文提出了一种可以定量验证刚体角动量守恒定律的实验方法。
In this poper, an experimental method which can be used to quantitatively test the Angular Momentum Conservation Law is presented.
将双管光电门应用于动量守恒定律，得到了较满意的效果。
When the two-tube photoelectric door is applied to the law of conservation of momentum. the satisfied results are obtained.
两个物体的运动轨迹相交时，将发生碰撞、干涉，在碰撞前后满足动量守恒和能量守恒定律。
When the motion tracks of two objects intersect, they may collide and have interference. Before and after their collision, they meet law of conservation of momentum and law of conservation of energy.
根据角动量守恒定律，笔者通过计算，定量的论证了行量、卫星是经过星云环形成的。
According to the law of conservation of angular momentum, it is proved quantitatively, that planets and satellites are formed through the nebulous ring in this paper.
用动量守恒定律和数学中等差级数的极限证明了火箭速度公式的两种形式是一致的。
By adopting the momentum conservation theorem, perforation of truncated oval-nosed projectile into stiffened plates was investigated.
动量守恒定律可以取代牛顿第三定律。
The law of momentum conservation could supplant Newton's third law.
动量守恒定律可以取代牛顿第三定律。
The law of momentum conservation could supplant Newton's third law.
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