但这一偏微分方程不能直接积分，所以通常用纳维法、瑞利-里兹法、有限差分方法等方法求解。
But this partial differential equation can not be directly integral, so usually use Navier method, Rayleigh Ritz method and finite difference method and other methods.
双积分是一种常用的转换技术，具有精度高，抗干扰能力强等优点。
Double integral is a kind of common conversion technology, with high precision, strong anti-jamming capability, etc.
与传统的有限单元法和常用的时间积分法相比，时空有限元在精度和稳定性方面具有一定的优越性。
Compare to the conventional finite element method and common-used time integration methods, the space-time finite element method has some advantages in precision and stability.
同时阐述了电动机电流测定的常用方法，如瞬时值的测定，积分测定等。
The common methods of current measurement for motor are presented, for example, instantaneous value measurement, integral measurement, etc.
常用求导公式和积分公式-这个系列的小抄囊括了微积分i级和II级课程常用的求导和积分公式。
Common derivatives and integrals - Here is a set of common derivatives and integrals that are used somewhat regularly in a Calculus I or Calculus II class.
阐述了温室控制中常用的方法，如分步控制、整体控制、反馈控制、比例控制、积分控制、微分控制、前馈控制的特点。
The common control methods, such as step control, integrate control, feed back, proportional, integral, derivative and feed forward, were described.
电荷是电流对时间的积分，(公式)电荷常常用一个表面上的带电粒子数，或一个元件(如电容器)上的粒子数来度量。
Charge is the time integral of current,. Charge is often measured on a quantity of particles, on a surface, or on a component such as a capacitor.
分析了计算机控制系统中最常用的PID调节器在工程应用中的积分饱和问题，介绍了几种抗积分饱和的方法。
The problem of integral saturation occurred in engineering application of PID controller which is most common in the computer control system was analyzed.
其次，总结归纳了目前常用的数值积分方法，指出了各种方法的优点和不足之处；
Then some common numerical integration methods have been summarized, and their advantages and disadvantages have been pointed out.
常用的计算自由能的方法有热力学微扰法及热力学微积分法等。
The usual means of computing free energy are thermodynamic perturbation, thermodynamic differentiation and etc.
等额配点法和最小二乘积分法是两种最常用的虚边界元法构造思路。
The primal research work about virtual boundary element method is on the problems of single domain.
频率测深一维问题正演常用的计算方法是数值积分方法，但是这种方法由于利用求和代替积分使得计算速度很慢，精度也较低。
The general method of calculation of E. M. sounding is that of numerical integral. But because of using summation instead of integral, it makes the calculation too slow and precision too low.
常用到初等微积分。
本文对基于单位功率因数的谐波电流检测方法进行了改进，用移动窗积分法取代检测中常用的低通滤波器。
This paper improved the harmonic current detection method based on UPF (unity power factor), using the slipped window integral to replace the LPF (low pass filter).
极限是微积分中的一条基本线索。本文主要列举五种常用的求极限方法：1、利用单调有界原理求极限；
The limits is a basic clues of the calculus. The main example of this paper gives five in common method: (1) bounded monotonic principle;
文中给出了几个理论例子，说明表面积分法的精度比常用地改方法的更高。
Several theoretical examples given in the paper show that the terrain correction of the surface...
文中给出了几个理论例子，说明表面积分法的精度比常用地改方法的更高。
Several theoretical examples given in the paper show that the terrain correction of the surface...
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