Stefan problem is free boundary condition of physical equation in thermal transfer when the boundary change.
斯蒂芬问题是研究边界变化时导热规律的的物理方程的自由边界条件。
The state equation of Pieoelectric beam is deduced directly from a piezoelectric physical equation in terms of a plane stress problem.
按平面应力问题，直接从压电物理方程出发，导出了压电梁的状态方程。
With reducing and regaining constant, it is showed that natural unit and dimensionless transformation are the same in physical equation.
本文给出寻找无量纲变换的一种具体作法，通过物理方程常数的压缩与恢复得出自然单位与无量纲变换相一致的结论。
Heat transfer equation is a kind of basic mathematical-physical equation. The thermal diffusivity is an important thermal physical parameter for soil.
传热方程是一类常见的基本数学物理方程，热导率是土体重要的热物理参数。
As the natural phenomenon's formation and movement is controlled by many disciplines, it is too difficult to describe the natural phenomenon exactly with physical equation.
由于自然现象的形成和运动受到许多规律的控制，在这些规律共同作用和影响下，真实准确的用物理方程将其描述出来是非常困难的。
The equation is different from other conclusions inferring and quoting curved beam differential physical equation(with same fundamental assumptions) in the correlative literatures.
该方程与相关文献中推导和引用的曲梁微分物理方程（基本假定相同）结论不同。
The stresses at the boundary can be calculated by the physical equation and the geometric equation according to the correlation between the stresses and the traction at the boundary.
构件边界上的应力可由弹性体的边界应力和边界面力的关系，通过物理方程和几何方程求出。
On one side of the equation are the calories we consume. Onthe other side are the calories we burn — through physical activity aswell as whatever is needed just to keep the body in good working order.
方程的一端是我们消费的热量，另一端是我们燃烧的热量——通过体育活动，还有保持身体良好工作秩序所需的各种办法。
All translate to almost the same physical size as the font size of 16px at 1024x758. If your screen resolution is not in the table, use this equation to find out what font size you should use.
所有设置可以转换为几乎相同的物理大小，即1024x758分辨率下的16px字体大小。
The application of the steady-state equation in one-dimensional transport processes of gas is discussed and the physical meaning of the equation is analyzed.
分析讨论了气体输运过程的稳定态方程的物理内涵，以及在气体一维输运过程中的应用方法。
This paper starts from the physical processes of cascade speed control system and derives several groups of elementary electromagnetic equation, dynamic block diagrams, and matrix equations.
本文从串级调速控制系统的物理过程出发，推求出几组基本的电磁方程、动态结构图及矩阵方程。
The author erected the reasonable and simplied control equation and physical model.
建立了符合实际的控制方程和简化物理模型。
In this paper, the generalized transport equation is derived from projection operator techniques and the physical meaning of the results is discussed.
本文介绍用投影算符技术导出广义输运方程，并对结果的物理意义进行了讨论。
The mathematical physical model is established depending on the conventional laser heat treatment technology, the partial differential equation of heat current propagation is derived.
本文以常规的激光热处理工艺为基础，建立相应的数学物理模型，导出热流传导的偏微分方程。
In theoretical research, physical model and calculating model of rod velocity about discrete rod warhead is established, and basing on this, the moving equation of rod center is analyzed.
在理论研究方面，建立了离散杆战斗部的物理模型和杆条速度的计算模型，并在此基础上，分析了杆条质心运动方程。
It also has its physical significance. Kepler equation is an integral of differential equation set. The introduction of assistant quantity E leads to the simplification of mathematic expression.
其物理意义，开普勒方程是关于行星运动微分方程组的一个积分，由于引入了辅助量E，使数学表达式大为简化。
The impulse response method is adopted to identify the modal parameters, and the physical parameters are estimated from the characteristic equation of the mathematical model built.
本文采用了单位脉冲响应函数法识别模态参数，由所建数学模型的特征方程识别结合部的物理参数。
Based on a theorem due to Hasminskii, a stochastic averaging equation is derived for a general system with one degree of freedom subject to physical white noise excitations.
本文根据的一个数学定理，对受多个物理白噪声激励的极一般的一个自由度系统导出了随机平均方程。
In physics, the physical parameter evolution along with the time is often controlled by the non-linear partial differential equation.
在物理学中，物理参量随时间的演化往往是由非线性的偏微分方程支配的。
Based on Time-dependent Schroe dinger wave equation and physical problems, the stability conditions for the choice of increment parameters are deduced in this paper.
文章从含时薛定谔波动方程出发，结合物理问题中的实际条件，推导出了空间和时间增量必须满足的数值稳定性条件。
The control equation was discredited by the Hybrid Finite Analytic method with the physical parameters arranged on a staggered grid. The discretized equations were solved by SIMPLEC method.
计算采用了混合有限分析方法离散控制方程，物理变量采用交错网格布置，用SIMPLEC算法求解离散方程。
Based on the master equation in the statistical physics, this paper dis-cusses the increasing processes of population and its physical influence.
本文应用统计物理中的主方程，讨论了人口的增长过程及其物理意义。
The result demonstrates that the twisting wave is longitudinal wave by anglicizing physical meaning of the longitudinal wave equation, transverse wave equation, and twisting wave equation.
通过与杆的纵振动波动方程与弦振动的一维波动方程中各个量的物理意义进行比较分析，得出扭转波是纵波的结论。
The derivative nonlinear Schrodinger equation (DNLSE) is an integrable equation of many physical applications.
微商非线性薛定谔方程(DNLSE)是有众多物理应用的可积方程。
From this model, a simple equation of excess enthalpy which is composed of the physical and chemical contributions is obtained.
提出了一个醇与烃混合的热力学模型，据此，得到了一个简单的超额焓方程，它由物理和化学贡献两部分组成。
The wall is supposed insulate, indoor thermal mass is considered in the model. the control equation is very simple, but it is enough to study physical phenomena.
该模型中假设围护结构是绝热的，只考虑了室内蓄热材料的蓄热作用，这样得到的控制方程虽然比较简单，但是对于研究简单的物理现象已经足够了。
In comparison with the methods by solving Schrdinger equation or using group theory, this method is more simple and convenient, and its physical picture is very visual and explicit.
这种方法与严格求解薛定谔方程或群论方法相比，较为简便，且物理图像直观、明确。
After defining a logarithm damage variable and effective stress, we introduce a damage evolution equation at crack tip bytaking into account the physical mechanism of the development ofcavities.
本文在定义对数损伤变量和相应的有效应力之后，引入了一种考虑材料内部空穴演变的裂尖损伤演变方程。
As the most physical of the shot-profile wave equation pre-stack depth migration involving huge extrapolation calculation, the calculation is extremely time-consuming and less efficient.
作为最具物理性的共炮点道集的波动方程叠前深度偏移，涉及庞大的波场外推计算量，计算极其耗时，效率较低。
The artical introduces elementary equation, boundary and initial conditions of model of equivalent conduction heat transfer, physical property prarameters processing and the method of value solving.
介绍了等效传导传热模型的基本方程、界条件和初始条件、性参数的处理以及数值求解方法等。
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