现在，如果你计算时间，会很接近终端速度，这并不简单，因为你们要解一个，令人厌恶的微分方程。
Now, if you want to calculate the time that it takes to get close to terminal speed, that is not an easy task, because you are going to end up with a nasty differential equation.
导出的非线性微分方程存在解析积分，从而得出转体运动的一般规律，计算结果与数值积分结果相一致。
The general characteristics of the turning motion are obtained, and the results of the analytic calculation agree with those of numerical integration.
利用所得到的结果，分析了数值微分法和经验公式的计算精度。
By use of the result, the calculating precision of numeric differential method and empirical formula is analyzed.
本文主要对积分变换在解微分方程及计算某些实积分方面的应用做了一点浅显的讨论。
In this paper, we mainly discuss the application of integral transformation in solving differential equations and calculating some real integral.
利用应力的坐标变换关系，推导出主应力与应力分量之间的微分关系，使主应力的精度计算更加简便。
By coordinate transformation of stress we have the differential relationship between the principal stresses and stress components to facilitate deviation calculation.
本文基于Gear方法对齿轮系统非线性动力学微分方程进行了数值计算分析。
Based on gear method, this paper presents the numerical calculation method for solving dynamics differential equations of gear systems.
推导出埋地管道的平衡微分方程，采用有限差分法分析并计算了轴向嵌固力对管道横向位移的影响。
By deriving balanced differential equation of buried pipeline, adopt finite difference method to analyze and calculate the effect of axial build-in force on pipeline transversely displacement.
利用图像小目标的微分几何特性，计算图像的最小法向曲率，并以此为阈值，获得小目标的候选对象。
By using differential geometry property of small object of infrared image, computing minimal normal curvature which is used as the threshold to obtain candidate objects for small target.
同时对转子精确位置信号进行微分计算又可以获得精确的速度信号，故实现精确速度闭环又成为了可能。
At the same time, we can get the speed value of motor by differential computing the position value, so it is possible to accurately control the speed of motor.
本文介绍了利用对数微分性质计算相对误差的机理和优点。
The paper introduces the principle and advantages of accounting relative error with logarithmic differential attribute.
但在计算矢量位函数和标量位函数的微分过程中，TPM模型将产生奇异点。
When the vector potential function and the differential of the scalar potential function are computed, singular points would occur on TPM.
最后自动组成空间刚体自由振动微分方程的系数阵，并计算出刚体的自振频率和振型。
Therefore, the differential equations 'coefficient matrix of the free vibration of the spatial rigid body is automatically formed, and free vibration frequency and its type can also be found out.
应用有限单元法对温度场微分方程进行求解，计算过程借助有限元分析软件ANSYS完成。
The differential equation can be solved by finite element technique, and the calculation process was done by the finite element technique software ANSYS.
计算结果表明，中心频率的漂移是微分吸收激光雷达主要的误差来源。
The calculated result indicates that a major error of differential absorption laser radar comes from the shift of its center frequency.
许多化工过程的精确动态分析计算是一个大规模的刚性常微分方程组的求解问题。
The accurate dynamic analysis of a lot of chemical processes is a large scale problem of solving an array of combined stiff ordinary differential equations.
极限是微分学的灵魂，极限的计算是极限理论的重要内容。
Limit is the soul of differential calculus, limits' calculation is an important content of the limit theory.
热力系统分析分别经历了代数运算、矩阵计算、矩阵微分等阶段。
It has been pointed out that the thermodynamic system analysis has gone through phases such as algebraic, matrix, and matrix differential calculations etc.
为建立机车各部件的垂向动力学微分方程，计算各悬挂力的输出响应，建立了系统质量、阻尼和刚度的增广矩阵。
Augmented mass, damping, stiffness matrix of system was set up to derive vertical dynamic differential equations for locomotive components and obtain output responses of suspensions.
介绍了一种滚动基础隔震系统，并由此建立了此隔震系统的计算模型和运动微分方程。
A rolling base isolation system is introduced and the computing model and dynamic equations of the isolation system are established.
在综合分析原有雪载荷计算方法的基础上，应用微分的思想探索更能反映拱顶特性的雪荷载估算方法。
Based on synthesis and analysis of traditional snow-load calculation method, an improvement was proposed with an aim of reflecting snow-load of the vault curve characteristics more exactly.
目的：建立一种根据血药浓度的微分特征计算静脉滴注双室模型药物动力学参数的新方法。
AIM: To establish a new method for calculating the pharmacokinetic parameters of bi-compartmental drugs based on the plasma level of the drug during the intravenous infusion phase.
通过合理控制计算量，得到了微分方程近似解的局部截断误差的估计。
The local truncated error estimation of the approximately solution could be obtained with reasonable computational cost.
由微分几何学原理得到计算主曲率的一般公式，克服了由薄板小扰度弯曲理论得到的主曲率计算公式的局限性。
The general equations of principal curvature derived from differential geometry overcame the limitations of previous equations derived from the theory of elastic thin plate with small deflection.
微分等价递归算法计算简单，在体系可靠度计算中有着广泛的应用。
Differential equivalent recursion algorithm is widely used in the reliability calculation of structural system because of its simplicity.
用来解微分方程的一种模拟计算机。
模拟计算机是被设计解决微分方程的。
The analog computers were designed to solve differential equations.
反应级数的确定在化学动力学研究中非常重要，现给出了利用计算机和用微分法确定反应级数的方法。
Determination of reaction series is very important in the chemical reaction kinetics. How to determine the reaction series by differential method on computer is introduced in this paper.
利用分段点处电流、电压应用解微分方程算法即可较精确地计算出线路阻抗。
The differential equation algorithm can accurately calculate the impedance from the splitting point to the fault point.
本文提出了一种适合在小型混合计算系统上求解抛物型偏微分方程及方程组的分时迭代法。
An iterative time-sharing method suitable for the solution of parabolic differential equations on a small scale digital-analog hybrid computing system is presented.
本文提出了一种适合在小型混合计算系统上求解抛物型偏微分方程及方程组的分时迭代法。
An iterative time-sharing method suitable for the solution of parabolic differential equations on a small scale digital-analog hybrid computing system is presented.
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