The definition domains of the moment equation, the approximate differential line of deflection equation and line of deflection equation in Material Mechanics are quite different.
《材料力学》中出现的弯矩方程、挠曲线近似微分方程、挠曲线方程的定义域不尽一致。
The method of weighted residuals is a mathematic procedure with which approximate solutions can be obtained directly from partial differential equations.
加权残值法是一种可以直接从偏微分方程中求得近似解的数学方法。
With the aid of the projective operator technique, an integro-differential equation for the porbability density and an approximate equation for the mean first-passage time (MFPT) have been derived.
推导了平均第一通过时间（MFPT）方程，并在弱噪声和短相关近似下，得出方程的解； 通过数值分析阐明了平均第一通过时间和噪声关联时间之间的联系。
In this paper, we study an approximate solution of the second-order linear ordinary differential equations with variable coefficients.
本文研究了二阶变系数线性常微分方程的一种近似求解方法。
Then to distinguish that there are or not objectives and their approximate space shape is based on some principles such as differential interface, disturbed effect, point response, etc.
根据差异界面、扰动效应和尖端效应等原则并结合具体的边界条件，判别目标体的存在与否以及存在的大致空间形式。
The general calculation formulas and differential approximate calculation ones are deduced, and the different machining occasions applying those jigs in condition of different demand o…
推导了三种钻模定位误差的通用计算公式和微分近似计算公式，提出了在不同定位误差要求下三种定位钻模适用的加工场合。
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.
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。
Using the comparison method, an approximate approach to the delay-differential equations is proposed in this paper. The proof of its convergence and calculation stability is also given.
本文应用比较方法，提出滞后型泛函微分方程初始问题的近似解法，给出了解的近似迭代序列及其误差估计式，并证明迭代序列的收敛性和计算稳定性。
The approximate solution to the nonlinear differential dynamic equation of a swing is derived by using another simple method, which is very suitable for discussing in class.
用另一种方法导出了秋千非线性动力学微分方程的近似解，很适合课堂讨论。
In approximate calculation of radiation transport differential equation absorption coefficient is a fundamental parameter.
辐射传输方程微分方法的近似解通常以吸收系数为基本参数。
In approximate calculation of radiation transport differential equation absorption coefficient is a fundamental parameter.
辐射传输方程微分方法的近似解通常以吸收系数为基本参数。
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