计算机无法准确地预测气候变化，除非输入计算机的数学方程充分地捕捉它们想要模拟的自然气象过程。
Computers cannot accurately predict climate change unless the mathematical equations fed into them adequately capture the natural meteorological processes they are intended to simulate.
自然，想象你是自然，这个球撞过来，你必须立马反应,快速解出这两个方程。
Nature... just imagine you are nature, and this ball comes on, and in no time at all you have to solve these two equations very quickly.
加州大学戴维斯分校环境科学与政策系教授黑斯廷斯，是世界上利用数学模型(方程组)来理解自然系统的顶级专家之一。
Hastings, a professor in the UC Davis Department of Environmental Science and Policy, is one of the world's top experts in using mathematical models (sets of equations) to understand natural systems.
特别地，许多可积方程都自然地产生于曲线和曲面运动。
In particular, many integrable equations arise naturally from motions of curves and surfaces.
参数识别反问题是偏微分方程反问题的一类，也是在自然科学与工程技术的各领域比较常见的问题。
Parameter identification problems belong to the partial differential equations inverse problems. They are also common in the field of natural science and engineering.
讨论了对流扩散方程的第二逆风差分格式的一些性质，并说明了在自然对流计算中的某些问题。
Discusses some properties of the second upwind difference scheme for the convection-diffusion equation and explains certain questions in the computation of natural convection problems.
波动方程递推求解后得到的去运动模糊图像，复原结果比较自然，没有振铃效应和畸变，但是会出现明显的累积噪声。
An image restored by a recursive solution of traveling wave equation is natural to visual interpretation, without ringing effect and distortion emerging, but accumulated noise appears on it obviously.
利用帕尔默旱度模式的基本原理，提出了徐州市自然旱度评估方程。
Natural drought evaluating equations are suggested for Xuzhou region by use of the Palmer drought mode.
本文针对二维自然对流换热的控制方程的数值求解，利用交替方向隐式格式，改善数值方法的收敛性。
The alternative direction illegible method is used in solving two-dimensional convection-diffusion equation for natural convection in cavity, and the convergence is improved.
常微分方程是大自然的语言。
The Ordinary differential equation is the language of the nature.
本文以调和方程为例，研究椭圆外区域上的自然边界无法。
In this paper we discuss the natural boundary element method for harmonic equation in an exterior elliptic domain.
然后利用矢量势和涡方程以及人工瞬变方法计算封闭腔中水的三维粘性自然对流。
Then, the vector potential and vorticity equations and the method of the false transient are applied to compute the three-dimensional viscous natural convection.
本文讨论了框架式动平衡机振动系统的自然频率运动方程、振动中心等问题；
The natural frequencies, the equation of motion and the node of vibration are discussed for the vibration system of a cradle dynamic balancing machine.
研究了椭圆外无穷扇形区域上调和方程边值问题的自然边界元法。
In this paper, we investigate the natural boundary element method for the boundary value problem of harmonic equation in an exterior elliptic infinite sector domain.
介绍勒让德方程在自然边界条件下的解，重点推导了勒让德函数的系数。
The solution of Legendre equation has been introduced in the condition of natural limit and the emphasis is put on the inference to the coefficient of the Legendre function.
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。
With reducing and regaining constant, it is showed that natural unit and dimensionless transformation are the same in physical equation.
根据锅炉启动过程中各个部件管内工质、管外烟气及汽包所遵循的流动传热方程，开发了控制循环与自然循环锅炉启动过程模拟程序。
A computer program is developed to simulate the start-up behavior of controlled-circulation and natural-circulation boilers on the basis of mass, momentum, and energy equations.
由它们可以自然地和同时推导出热静力学的所有平衡方程和熵不等式及热动力学所有均衡方程和熵率不等式。
From these new fundamental laws all equilibrium equations of thermostatic and all balance equations of thermodynamics as well as the entropy inequality and the entropy rate are naturally derived.
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。
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.
自然界的运动规律常常用线性微分方程来描述，但进行深入的考虑，更多的运动规律是非线性的。
Ordinary linear differential equation with its solution is an approximate method to describe dynamic laws of nature, Strickly speaking, most laws of nature is nonlinear.
由磁场能量推导出SR电机的自然机械特性方程序。
And the equation of natural mechanical properties of SR motor is deducted from magnetic field energy.
运用伯努利方程建立了逆流式自然通风冷却塔（逆流塔）配水的水力计算方程。
A hydraulic computation equation for water distribution sytem of counterflow type natural draft cooling tower has been established by applying Bernoulli Equation.
基于相对轨道根数法，根据卫星相对运动方程，提出了“自然队形”的概念及队形设计的一般方法，并给出了具体的例子。
A concept of natural formation and a general RT design method are proposed based on the relative Orbital Element method and the relative motion equation in this paper. An example is given.
为模拟自然界中既包含竞争关系又包含捕食-被捕食关系的生态系统，建立用常微分方程组表示的环状模型。
An annular model for chemostat was depicted by a group of ODE(ordinary differential equation) to imitate the ecosystem which included competition and predator-prey relations in nature.
较严密地推导了能够描述含水层热量运移中自然热对流作用的水流方程和热量运移方程，并在此基础上建立了一个三维非线性模型。
In this paper, the flow and thermal transport equations for the accurate description of natural thermal advection in the process of heat transfer in aquifers are manipulated and presented.
以二维弹性力学自然边界积分方程法为基础建立了二维弹塑性问题的自然边界积分方程。
Based on the natural boundary integral equation for two dimensional elasticity, a corresponding elastoplastic formulation is presented in this paper.
对在无自然稀疏和有自然稀疏状况下有关植物群落的竞争密度效应的两个倒数方程的差异进行了理论分析。
The differences between the two reciprocal equations of the competition-density effect in nonself-thinning populations and self-thinning populations were analyzed theoretically.
微分方程是一门表述自然法则的语言。
Differential Equations are the language in which the laws of nature are expressed.
自然边界积分方程分析可直接获得边界应力和位移导数。
The natural BIE can be employed directly to obtain boundary stresses and displacement derivatives.
自然边界积分方程分析可直接获得边界应力和位移导数。
The natural BIE can be employed directly to obtain boundary stresses and displacement derivatives.
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