conservation of mass

1. So, what's the conservation of mass if we divide by the atomic masses here?
   那么质量守恒是什么呢？，如果我们在这儿按原子质量划分？
2. We invoke Dalton's Law of molar proportions, we write it subject to conservation of mass.
   我们援引了摩尔分数的道尔顿定律，要服从质量守恒定律。
3. Under these conditions the conservation of energy is equivalent to the conservation of mass.
   在这种条件下，能量守恒和质量守恒是相等的。
4. Conservation of Mass. Conservation of Momentum. Stress Tensor.
   质量守恒，动量守恒，应力张量。
5. We write it subject to conservation of mass.
   要服从质量守恒定律。
6. Based on the simultaneous solution of conservation of mass, momentum and energy, a homogeneous model and a separated two-fluid flow model have been developed for the single-loop pulsating heat pipes.
   在对控制单元进行质量、动量和能量守恒分析的基础上，分别建立了适用于毛细管内气液两相流的均相和分相模型，并将其应用于脉动热管中。
7. At the system level, it follows the first principles to keep the conservation of mass, energy, and momentum, respectively.
   该方法在系统层面，采用传统的基于质量守恒、能量守恒、动量守恒的建模思路，保持模型的通用性。
8. These are equations of local conservation of mass and the jump condition.
   这些就是局部质量守恒方程和跃变条件。
9. Based on the conservation of mass, energy and chemical compositions, a model of seam-cavity growth is established to describe the process of underground coal gasification.
   通过质量守恒、能量守恒和化学组分平衡描述了煤炭地下气化过程，建立了煤炭地下气化中燃空区煤层扩展的数学模型，根据试验条件进行数值求解。
10. Estimation of water amount in river network of Taihu Lake based on isotopic mass conservation Conservation of Mass. Conservation of Momentum. Stress Tensor.
    利用同位素质量守恒原理估算太湖河网受水量质量守恒，动量守恒，应力张量。
11. This paper presents physical models of modules which solutions are followed to conservation of mass, conservation of energy, conservation of momentum and equation of gas state the paper gives an euler calculational method of solving the whole model by computer.
    文章提出了物理建模的所要遵循的质量守恒，能量守恒、动量守恒以及气体状态方程。并且文章给出了一种由计算机用于解决整个模型的欧拉算法。
12. Then the writer gave a practical case of law of conservation of mass. The conclusion is that the learning mode of the new curriculum is useful not only in theory but also in practice, and it is popular with students.
    然后，给出了质量守恒定律一节的教学方案，通过实施得出结论：新课程学习方式不仅在理论上是可行的，在实践上也是行得通的而且是深受学生欢迎的。
13. The dynamic system model is coupled with geothermal heat exchanger model and heat pump unit model, which is based on the conservation of mass and energy.
    采用确定性模型法建立了热泵机组的模型，然后通过能量和质量守衡方程式建立了系统动态耦合模型。
14. Based on the conservation of mass and energy, applying the theories of transfer heat and pump, the paper gives the methods and process how to build the dynamics mathematical simulation model of feed-water system.
    以质量和能量守恒定律为基础，应用传热学及泵的有关理论，建立了给水系统中除氧器、给水泵、小汽机、高压加热器等设备的动态数学模型。
15. Application of Fine Equilibrium and Conservation of Mass in Chemical Dynamics
    试论细致平衡、质量守恒在化学动力学中的应用&从细致平衡、质量守恒看速率常数和平衡常数及基元反应总反应的关系
16. Based on the conservation of mass and conservation of energy and reasonable hypotheses for the dynamic thermal system, the dynamic simulation model of spray desuperheater was established using lumped parameters method.
    根据质量守恒定律和能量守恒定律，经过合理的热动力学假设，采用集总参数的方法建立了喷水减温器的动态仿真模型。
17. To deduce out the mathematical model of spontaneous combustion of coal gangue, the air flowing state of coal gangue, combined with Darcy law, infiltrative equation, and conservation of mass, and makes use of macroscopical continuous medium were explored.
    从研究矸石山煤矸石内的气体流动状态出发，结合达西定律、渗透连续性方程和质量守恒定律，利用宏观的连续性介质进行研究，推导出矸石山煤矸石自然发火的数学模型。
18. And gives the computational mathematical model for quay drainage and calculation formula for drainage process according to the principle of conservation of mass and underground percolation, which have been applied for quay's stability design and calculation.
    运用质量守恒定律和地下水渗流原理，建立了港口码头排水计算数学模型和排水过程计算公式，并用在了码头的稳定设计计算中。
19. According to the Newton's second law of motion, the law of conservation of mass, and Bingham plastic flow equation of slurry, as well as under top cement pulsation, the mathematical models of one dimensional pressure pulse propagation downwards in the cement column was established.
    文中根据牛顿定律、质量守恒定律及水泥浆的宾汉塑性流变性，在顶部水泥脉冲振动作用下，建立了水泥浆中，一维压力传播的波动方程的数学模型。
20. According to the simulation method bring forward, the simultaneous equations of the conservation of mass equations, the dynamics equations of moving parts and the pressure wave equations in all boundaries are solved.
    根据所提出的模拟计算方法编制了相应的仿真程序，联立求解了各边界处的质量守恒方程、运动件的运动方程和高压油管中的压力波动方程。
21. This paper defines what the law of conservation of mass means and its application in Junior chemistry.
    论述了质量守恒定律的内涵，及其在中学化学解题中的应用。
22. Based on the principle of momentum conservation and conservation of mass, this paper studies and sets up a mathematical model of the process of debris flow deposit and work out the model with numerical simulation method.
    本文根据动量守恒和质量守恒原理，研究建立了泥石流堆积过程数学模型，运用有限差分法求解数学模型。
23. It contains Euler equations for conservation of mass, momentum and energy, and Poisson equation through which the gravitational potential is determined by the density distribution of the gas itself.
    它包括由质量守恒方程、动量守恒方程和能量守恒方程构成的Euler方程组以及由星体本身的密度分布决定的自引力势能所满足的Poisson方程。
24. Governing equations are available according to laws of conservation of mass, momentum and energy, which are general for unsteady flow and heat transfer in round pipelines.
    通过质量守恒定律、动量守恒定律和能量守恒定律，推导出了热油管道不稳定过程变物性耦合流动的控制方程，该控制方程对于圆形管道内的非稳态流动与换热具有通用性。
25. A qualitative explanation based on law of conservation of mass and energy theory of breaking and aggregating of bubble was made. An empirical correlation was presented on the base of experimental data, with average deviation of 6.3% and the maximum deviation of 20.8%.
    并根据质量守恒定理和气泡聚并的能量理论对以上结论做出了定性的解释，另外对实验数据进行了回归分析得到气含率的实验关联式，平均相对偏差为6.3%，最大偏差为20.8%。
26. Under certain hypotheses, Stokes waves on uniform current are still Stokes waves with variant parameters. The effects of current on wave parameters are obtained by the conservation of mass, momentum, energy and dispersion relation. So the velocity potential of wave-current field can be determined.
    在一定假设下，利用均匀流上Stokes波仍为Stokes波和波流作用前后质量、动量、能量守恒及色散关系，求出水流中波要素的变化和波流场势函数。
27. And according to the law of conservation of mass and energy, the ideal gas equation of state and the propeller works to establish a mathematical model of ship propulsion systems.
    并根据质量和能量守恒定律及理想气体状态方程以及螺旋桨工作原理建立了船舶推进系统的数学模型。
28. By analyzing the principle of conservation of mass, we can get the continuity equation of coal containing gas.
    通过质量守恒定律，分析得到含瓦斯煤岩的连续性方程。
29. The modeling method is based on conservation of mass and gas law.
    气体流量模型是根据质量守恒定律和理想气体方程对其建模。
30. Establish the mathematical model of various aspects of heating system based on the law of conservation of mass and energy, and then establish the simulation model of various aspects and the whole system by MATLAB/ SIMULINK tool.
    根据质量和能量守恒定律对供热系统的各环节建立了数学模型，然后运用MATLAB/SIMULINK工具建立各环节及整个系统的仿真模型。

noun

1. a fundamental principle of classical physics that matter cannot be created or destroyed in an isolated system

   Synonym:    conservation of matterlaw of conservation of masslaw of conservation of matter