The kinetic energy theorem of mass variable system is derived from the kinetic equation of mass variable body.
从变质量物体的动力学方程出发，推导出变质量系统的动能定理。
The kinetic energy theorem of mass variable system is derived from the kinetic equation of mass variable body. The practical value of it is pointed out using an example.
从变质量物体的动力学方程出发，推导出变质量系统的动能定理。指明其实用价值，并举例加以说明。
For the end, an equation of mass flux of jet about time deduced by the differential element method was compared to CFD results, and the influence of design parameters was analyzed.
最后利用微元法得到了射流流量随时间变化的函数关系式，并和数值模拟值进行了对比，分析了各设计参数的影响。
Einstein's famous equation, E=mc2, outlines how energy is equivalent to mass times the square of the speed of light.
这个道理可以参考著名的爱因斯坦质能方程式，E=mc2,能量E是质量m乘以光速c的平方项。
Although the parachute is widely used in deceleration system, it's seldom mentioned the establishment of moving equation and especially the added mass.
降落伞在减速系统中已被广泛地运用，但是其运动方程的确立，尤其是方程中的附加质量项，在中国却少有提及。
The mass transfer equation was introduced into heat transfer model of falling film evaporation. The radial velocity, mass diffusion coefficient and variation of film thickness were taken into account.
将传质方程引入到垂直管降膜蒸发传热模型中，求解时考虑了径向速度、质量扩散系数和膜厚变化对传热的影响。
That said, we realize that mass media advertising is only part of the equation.
这说明我们意识到大众传媒广告只是整个传播项目的一部分。
According to conservation of mass, this article establishes a kind of mathematical model for the equation equilibrium of chemical reaction, and also gives its solution both by man and by computer.
本文根据质量守恒定律建立了一种配平化学反应方程序的数学模型，并给出了模型的人工解法和计算机解法。
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。
The effect of spring mass on oscillation frequency and elastic constant is discussed by solving the wave equation.
通过求解弹簧中纵波的波动方程，讨论了弹簧质量对振子的振动频率及弹簧劲度系数的影响。
Evaporation quantum of liquid is expressed as mass source for vapor in vapor mass conservation equation, while it is dealt with mass sink for itself.
在建立多孔介质各相质量守恒方程时，液体蒸发量相对于蒸汽相而言为质量源，对液相本身而言为质量汇。
The vibrational equation of the tube was given with the straight tube Coriolis mass flow meter as the investigated object, and the solving process is discussed.
以直管科里奥利质量流量计为研究对象，给出被测流体脉动时测量管的振动微分方程，讨论了方程的求解过程。
Through establishing the mass balance equation of organic substrate in MBR, the mathematic expression of organic pollutants removal efficiency could be achieved.
通过建立反应器内有机底物的质量平衡方程，得到了MBR对有机污染物去除率的数学表达式。
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.
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；
Equations of mass, momentum and second moments for particulate phase are derived from a particle PDF (probability distribution function) equation in dilute turbulent sediment-laden flows.
从颗粒运动的PDF(概率密度分布函数)输运方程出发建立颗粒相的质量、动量和脉动速度二阶矩方程。
Based on the theorem of momentum, the mass equation of special relativity is derived using a simple thought experiment.
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。
The dynamics equation of sensor is constituted and the equation's solution is got. The relationship of output voltage and pendular angle of the sensing mass is gained.
建立传感器的动力学方程并求得解析解，得到输出电压和传感器敏感质量摆角的关系。
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。
By revising the rotation displacement equation, a mass matrix of this kind of structure is derived by virtual principle in this paper.
采用虚功原理，通过对单元转角-位移方程的修正，推导了这种计算模型的单元质量矩阵和刚度矩阵。
With the aid of vector method, constraint equation, kinetic energy consideration, the inverse position model, Jacobian matrix and mass matrix have been developed.
本文取得如下成果：借助矢量法、约束方程和动能定理分别构造出机械手的位置逆解模型、速度雅克比矩阵、质量惯性矩阵。
Revising the rotation displacement equation, the mass matrix and stiffness matrix of this kind of structure were derived by virtual principle.
采用虚功原理，通过对单元转角-位移方程的修正，推导了这种计算模型的单元质量矩阵和刚度矩阵。
The model of a kind of wave energy device moored on seabed is simplified into a spring-mass-damping system, and then its motion equation is built according to Newton's second law.
将造波水槽内二维浮体牵引弹簧回复液压缸的受力系统简化为弹簧—质量—阻尼器系统，建立数学模型，并根据牛顿第二定律得到运动方程式。
The basis of stable model is MESH equation, or mass, vapor-liquid, component addition, and enthalpy equilibrium equations.
稳态模型建立的基础是MESH方程，即物料平衡方程、相平衡方程、组分加和方程和焓平衡方程。
The text is detailed to study the deducing process of the nodal finite difference equation, and to study its application hi the rock mass engineering problems.
本文详细研究了节点有限差分运动方程的推导过程，以及在岩土工程问题中的应用。
The mass of the propeller (G) is objective function. The restrict equation was created and the problem has been solved by the software of MATLAB7.0.
以螺旋体的质量G作为目标函数，建立约束方程，并用MATLAB7.0软件编程求解出结果。
The relation of scale conversion is gotten by use of the mass conservation equation.
同时，引入质量守恒方程，得出弹体的比例尺度换算关系。
The mechanism by which we construct dynamic equation for the flexible arm can be used to model any kind of concentrated mass flexible arms.
本文所采用的柔性手臂的动力学建模方法，可以用来为任何一种质量集中的柔性手臂建模。
Based on the theory of gas percolation, law of mass conservation and hydrodynamics, basic mathematical equation of gas flow model was established.
依据瓦斯渗流理论、质量守恒定律和流体力学，建立了瓦斯流动数学模型的基本方程。
Mass transfer mechanism, mathematical model and operating line equation of rectification-crystallization combination method are presented in this article.
研究了精馏-结晶联合法的分离工艺，介绍了精馏-结晶联合分离法的传质机理、数学模型、操作线方程。
The deducted equation of Liquid membrane mass transfer dynamics is verified by experimental results.
并由实验数据验证了推导出的液膜传质动力学方程式。
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