牛顿第二定律，动量定理。
其中，主矢方程就是动量定理给出的方程；
The main vector equation is the equation given by the momentum;
动量与动量定理是高中物理教学的重点之一。
The momentum and the theorem of momentum is one of key in the physics teaching of senior middle school.
结果表明，与通常的角动量定理比较出现了修正项。
It is shown that there will be a revisional term in the generalized angular momentum theorem.
利用CBL技术在变力作用下验证了动量定理，并介绍了实验原理及实验步骤。
Using CBL technique, the theorem of momentum with changing force is tested. The experimental principle and procedure are introduced.
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.
从动能定理出发，推导出一个对速度瞬心轴的角动量定理，它是一个简便的标量方程。
In accodance with kinetic energy theorem, this paper presents an angular mo- mentum theorem of velocity instantaneous centre axis. This theorem is a simple and convenient scalar equation.
设计了一个简单的思想实验，用动量定理对洛伦兹变换成立的条件导出了相对论质量公式。
Based on the theorem of momentum, the mass equation of special relativity is derived using a simple thought experiment.
通过构造出质系动量系统碰撞模型和采用线性编址双缓冲图形绘制技术，实现了质系动量定理的实时仿真。
By constructing momentum theorem collision model and employing addressable, double-buffered graphic rendering technology and the real-time simulation of momentum theorem is implemented.
本文针对输水廊道的水流特点，应用动量定理建立起输水廊道沿程增量流微分方程，并给出一种数值解法。
In accordance with flow characteristics of the catch-water channel, linear increment flow differential equation has been obtained by momentum law, and a numerical method has been made.
将各种按动量定理工作的冲击式水轮机作为研究对象，构建其基本原理模型，严谨地推导出原理模型基本方程及其数值解。
The basic principle model was established on the various impulse turbines. The basic principle formulas, the formulas of kinetic energy and direction of outflow were deduced strictly.
将各种按动量定理工作的冲击式水轮机作为研究对象，构建其基本原理模型，严谨地推导出原理模型基本方程及其数值解。
The basic principle model was established on the various impulse turbines. The basic principle formulas, the formulas of kinetic energy and direction of outflow were deduced strictly.
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