查询词典 difference equation

It is assumed that it is adiabatic compression during start-up process before the atmophere pressure in flow passage rise to relief pressure, the thermodynamic equation, momentum equation and rigid water hammer theroy have been applied for the analysis and calculation the variation law of air during this transient process.

假设流道内气体未达虹吸驼峰顶处真空破坏阀排气压力前的起动过渡过程处于绝热压缩状态，运用能量方程结合动量方程和刚性水击理论，计算分析出了流道中的气体压力在起动过渡过程中的变化规律。

Based on two-dimensional elastic wave equation and adopts the well logs as constraint condition, a new imaging method of crosswell seismic data-elastic wave equation inversion and imaging with the well logs constraint is given by using adjoint theory of distribution-parameter control system.

基于二维弹性波动方程，利用分布参数控制系统的伴随理论，采用测井资料作为约束条件，本文给出了一种井间地震资料速度成像的新方法——井间测井约束弹性波动方程反演成像。

All of the F1 call to be the Championship (Chinese:a class equation race car a world championship)of the FIAFormula World",.F1 and World Cup Soccer, Olympic sports games because of influence scope wide, popularity Gao, and be called "world three big sport, F1's race car is the most expensive in the world, speed most quick, science and technology content the tallest sport, included to regard aerodynamicist as principle, plus radio communication, electrical engineering...etc. in the world most the forerunner's technique is a lot of new science and technology can at the beginning practice on the F1.The F is a FORMULA abbreviation, namely equation;1 explanations include a lot, can comprehend for the top car hand, top-class game, cash award etc..

F1的全称是FIAFormula World Championship"(中文：一级方程式赛车世界锦标赛)，。F1 与世界杯足球赛，奥林匹克运动会因为影响范围广，知名度高，并称为"世界三大运动，F1赛车是世界上最昂贵、速度最快、科技含量最高的运动，包含了以空气动力学为主，加上无线电通讯、电气工程等世界上最先进的技术很多新的科技都是在F1上得以最初的实践的。F是FORMULA的缩写，即方程式；1的解释有很多，可以理解为顶尖车手，顶级赛事，奖金等等。

This paper first analyses the stress acting on the cable by means of tiny segment analytical methods, establishes cable's stress equation, and finds out the relation between the tethered aerostat's position and its stress acting by cable; then, based on the momentum and moment of momentum theorem, the longitudinal nonlinear dynamic equation is established; Finally a numerical simulation of dynamic responses of the balloon and cable to gust are carried out.

本文首先通过微段分析法对缆绳进行受力分析，建立缆绳的受力方程，找出了系留气球在空中的位置同系留气球所受缆绳拉力的关系；然后根据动量和动量矩定理建立了球体的纵向非线性运动方程；最后通过数值仿真计算，对系留气球的纵向动态响应特性进行了分析。

The derivative nonlinear Schrodinger equation is, however, an open and important issue both in theoretical and applied aspects. The DNLS equation with nonvanishing boundary conditions is solved by introducting an affine parameter and we find that it supports a rich set of soliton solutions.

大部分完全可积的(1+1)维非线性偏微分方程，特别是有明确物理应用的方程的孤子解已经用反散射变换等方法得到，但还剩下一些难题，变形的非线性薛定谔方程在非零边值下的反散射变换就是其中一个。

A differential equation for calculating squeeze-film air damping in slotted plates is developed by modifying the Reynolds equation.

推导出了一个适用于槽板结构压膜空气阻尼的微分方程。

The differential equation and algebraic equation are calculated separately so as to use proper methods based their own characteristics.

将微分方程与代数方程的解算问题分离，根据各自的特点选用适当的方法求解。

Governing equation discrete, solving of the conjugated algebraic equation set and SIMPLE method are also discussed in this paper.

同时对方程离散、方程组的耦联求解及SIMPLE算法等数值计算以及湍流及其模型等问题进行了论述。

This equation can be deduced to an algebraic equation. Then, the boundary of water surface is fixed boundary condition.

在此基础上，并考虑了热对流和风吹掺混对水温分布的影响，利用FORTRAN语言编制了预测水库水温的微机程序。

A pressure correction equation is established by use of the finite volume method on nonorthogonal collocated grids, and its algebraic form is also given. The equation is applied to simulation of the flow field in an equilateral cavity and an inclined cavity with a tilt angle of 45°.

利用有限体积法建立了非正交同位网格系统中的压力校正方程，详细给出了压力校正方程的离散形式，并对正方腔及倾斜角为45°的斜方腔内流场进行了数值模拟计算。

The witness also told the jury at the Royal Courts of Justice in London that he saw a paparazzo fighting with a member of the public who was trying to stop him taking pictures in the minutes before the emergency services arrived.

他还告诉在伦敦皇家法庭的陪审团，在急救服务到来之前，他当时看见一个狗仔队正和一群阻止他拍照的人打架。

The entire N／C program on a tape is made up of an accumulation of these successive data blocks.

纸带上的整个数控程序由这些连续数据单元连接而成。