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。
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。
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；
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。
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。
The model involved in particle charging equation, electric field and charge conservation equation, gas conservation equations of mass and momentum, particle mass and momentum equation.
模型涉及的方程包括：颗粒荷电方程、电场与电荷守恒方程、气体质量与动量守恒方程、颗粒质量与动量方程等。
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。
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.
介绍了一种新的化学反应方程式的配平方法，使用这种方法可以配平任何类型的氧化还原反应方程式，却不需知道反应式中氧化剂、还原剂氧化数的变化值及得失电子数。
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.
介绍了一种新的化学反应方程式的配平方法，使用这种方法可以配平任何类型的氧化还原反应方程式，却不需知道反应式中氧化剂、还原剂氧化数的变化值及得失电子数。
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