查询词典 simultaneous equations

The flow resistance and the phase permeability and the coupling of the flow between the reservoir and the wellhole were adopted to admend the deliverability equations of the horizontal well, which improves the applicability of the formula and the adjusted deliverability equations can guide and serve in the fields production with the the horizontal well.

本文以评价边底水油藏水平井产能及影响因素为总体目标，在国内外文献调研基础上，采用镜像反映原理和势的叠加理论推导出边底水油藏水平井产能公式，然后考虑完井、多相渗流及井筒压降对产能的影响，提出了利用流动阻力、相渗透率及井筒与油藏流动耦合修正水平井产能的修正方法，提高预测公式的适用性，为边底水油藏水平井生产提供了指导作用。

In the context of a system of barotropic shallow-water equations and Boussinesq approximate equations for two-dimensional meso-scale transversal wave disturbance in zonally sheared base flow, study is performed of the physical process of the meso disturbance propagation along the flow, indicating that such vortex Rossby waves are separated into two kinds. The first kind VRW is produced owing to the second-order horizontal shear in the flow or due to the meridional change in vertical vorticity of the flow, i.

本文使用正压浅水方程组以及纬向切变基流下二维中尺度横波型扰动的Boussinesq近似方程组，分析了这种沿着基本气流方向传播的中尺度扰动的波动传播物理过程。

The method in this paper abandon thisreinitialization step by discreting the convection terms in governing equations usingspecial schemes borrowed from conservational law equations.

通过对控制方程中输运项离散方法的特殊处理，本文的方法屏弃了这个重新初始化步骤。

Based on the basic equations of electromagnetic waves transmit in waveguide, then focus on three different geometric border waveguide (rectangular, deltaic, cylindrical) for discussion ,the basic equations of electromagnetic waves in rectangular waveguide , deltaic waveguide and cylindrical waveguide are got.

本文在得出求波导中电磁波的基本方程后，针对三种不同几何边界的波导管进行讨论，导出了电磁波在矩形波导、三角形波导和圆形截面的空心波导中传播的基本方程。

Dynamic cutting force is a basic parameter and it directly influences relative displacement between tool and workpiece, tool wear and surface quality in turning operation. Therefore, simulation model of dynamic cutting force is an important part of machining physical simulation research. Cutting force models commonly used are empiristic equations. These equations are often based on statistical analysis of machining data, obtained via changing one or more machining parameters, whilst fixing others. But a complete turning process and nature of force can not be accurately described by means of these models.

动态切削力是切削加工过程中的基本参数，其动态变化直接影响加工过程中刀具与工件的相对位移、刀具磨损和表面加工质量等，因此动态切削力的预测仿真建模是切削过程物理仿真研究的基础，但是目前大多使用经验公式描述动态切削力，这些经验公式多少存在一些不足，难以完全真实地反映在整个切削过程中力的变化历程和变化特点。

The dynamic equations of helically buckled pipe string in vertical wells are a group of high order nonlinear ordinary differential equations, which describe the axial force distribution and deformation behavior of pipe.

描述垂直井中螺旋弯曲管柱轴力分布和变形行为的力学方程是一组高阶非线性常微分方程组。

In chapter two, using the hydrodynamical equations for electrons and Maxwell equation and through complicated calculation, we finally obtain a set of equations which describe the non-steady and nonlinear interactions between plasma and field in the wake region of a moving body in space.

第二章是从描述电子的磁流体方程和麦克斯韦方程出发，通过计算，最后得到了一组在考虑非静态极限下描述空间飞行器远尾区内等离子体与场之间的非稳态非线性相互作用耦合方程。

Multivalued functional differential equations and integrodifferential equations are an important branch in the theory of nonlinear analysis, which have wide applications in many fields such as engineering, economics, optimal control and optimization theory.

多值泛函微分方程和积分微分方程是非线性分析理论的一个重要分支，它在工程、经济、最优控制及最优化理论等领域有着广泛的应用。

With horizontal shear component of intercolumn forces ignored, four equilibrium equations were formed, i.e., force equilibriums along the vertical direction, the sliding direction, Y axis direction, and moment equilibrium around Y axis. The equilibrium equations contained the actions of underground water, earthquake and supporting forces.

在忽略条柱间作用力的水平剪切分量的基础上，建立铅直方向、滑动方向、垂直滑动方向的力平衡以及绕Y轴的力矩平衡共4个方程，平衡方程中纳入地下水、地震、支护力作用。

This paper proves that the canonical equations of Poincarè-Chtaev are more general Hamilton equations in terms of noncanonical variables.

研究表明：庞加莱－契达耶夫正则方程是非正则变量下相当普遍的哈密顿方程。

That's what makes this mod unique.

这也正是这个MOD独特。

I now feel furious and want to do something.

现在我觉得非常气愤，想做点什么。