能量可变可不变，可增加或减小，或保持动能不变，但若系统无外力，动量总是守恒。
Energy can change or cannot change, can increase or decrease or remain the same kinetic energy, but if there are no external forces on the system, momentum is always conserved.
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.
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.
基于井筒多相流流体质量、动量、能量守恒原理，导出了描述其井筒压力、温度预测耦合模型；
Based on the mass, momentum and energy conservation of fluids in multiphase wellbore flow, the coupling model to predict pressure and temperature is deduced.
基于能量守恒、动量守恒、质量守恒方程，建立描述绝热毛细管特性的数学模型。
The adiabatic capillary tube model was established based on energy conservation, mass conservation and momentum conservation equations.
解牛顿运动方程的能量与动量守恒型积分方法。
Energy and momentum conserving integrators for Newtonian motion equations.
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.
通过求解质量守恒、动量守恒、能量守恒方程，获得液膜厚度、速度与温度等参数。
Conservation of mass, momentum, and energy are used to solve for the liquid film thickness, velocity, and temperature.
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.
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.
液膜厚度、速度与温度等参数通过求解液膜的质量守恒、动量守恒、能量守恒方程获得。
Conservations of mass, momentum, and energy are used to determine liquid film thickness and temperature.
采用有限容积法计算了质量、动量、组分与能量守恒方程。
The finite volume method was applied to the calculation, which is based on the fundament conservation laws of mass, momentum, species and energy.
用数值解二维N-S动量守恒、能量及组分守恒方程，模拟了一个设置空腔的超燃燃烧室流场参数分布及性能。
The parameter distribution and performance of supersonic combustor with cavity were calculated by means of the solution of 2-D N-S momentum, energy and mass fraction conservation equations.
以r22为制冷工质，根据质量守恒、动量守恒和能量守恒等热力学基本定理建立了空调冷凝器的稳态分布参数模型。
From basic thermophysical laws, a steady distributed parameter model of an air-conditioning condenser was constructed, in which R22 was taken as working fluid.
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.
换热器模型基于两相流分析，在动量、能量、质量三大守恒方程基础上引入一个反映两相之间相互关系的关系式以使方程可解。
The model of heat exchangers for room air conditioner are based on two phase flow analysis and an equation which reasonably reflects th…
换热器模型基于两相流分析，在动量、能量、质量三大守恒方程基础上引入一个反映两相之间相互关系的关系式以使方程可解。
The model of heat exchangers for room air conditioner are based on two phase flow analysis and an equation which reasonably reflects th…
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