这个近似近似的，范特霍夫方程。
Is this approximation here, t his approximate van 't Hoff equation.
这种分析滤波器误差分布近似的方法就是勃脱华兹近似。
The method mentioned above is the Blltterworth approximate, which is applied to approximately analyze the filter error distributing.
发现在梯形近似下，它们是自洽并有内在联系的；但在更一般的非梯形近似的情况下，这种内在联系并未找到。
It is found that they are compatible and interrelated in the ladder approximation, whereas beyond this approximation the interrelation is not established.
根据粗糙集上下近似的包含关系，得到概念的一种新的上下近似的运算的定义。
Based on the inclusion relation of upper approximations and lower approximations of rough set, a new definition of upper approximations and lower approximations can be obtained.
在矩形网格上的九点差分近似的正确公式。使用它，在均质情况下，对拉普拉斯方程、布阿松方程和热传导方程可以构造出高阶精度的差分近似。
Under homogeneous conditions, the application of this equation may give a differential approximation of high order accuracy for Lapace equation, Poisson equation and heat conduction equation.
略去自旋轨道耦合效应，在标量相对论近似下本文提出了一个近似的、相对论格林函数电子能带结构计算法。
In this paper, a Scalar Eelativiatic Green's Function method (SRA-KKR) neglecting spin-orbit coupling effect has been proposed for the energy band calculation.
通常通过对跨线测量各种近似公式全微分得到近似的误差公式。
Generally, the error formula of over-wire measurement is derived from an approximate formula.
高阶近似的精度明显优于相应的线性近似的精度；
The high-order approximations perform much better than the corresponding linear ones.
早期的自聚焦研究是在考虑了傍轴近似和标量场近似的前提下得到的。
The early research was based on the scalar approximation and paraxial approximation.
本章内容包括地理标志与其近似概念的比较、地理标志的特征以及地理标志与近似的概念比较。
This part includes the conception and characters of geographical indications and the comparison between similar conceptions.
和的高阶近似可适用于很强的各向异性，而和的高阶近似的精度明显不如前两者。
The high-order approximations of and are applicable for very strong anisotropy, while the performance of the approximations of and is much worse than those of and .
对向定常流区推进的单向波问题给出了解的一级近似和二级近似的普遍表示式；
Venant's differential equations. The general analytical solutions of 1st and 2nd approximations have been given for one directional wave flow which propagates into the steady flow region.
采用时间上二阶、空间上高阶近似的交错网格高阶差分公式求解三维弹性波位移-应力方程，并在计算边界处应用基于傍轴近似法得到的三维弹性波方程吸收边界条件。
Here, we use second-order, temporal - and high-order spatial finite-difference formulations with a staggered grid for discretization of the 3-d elastic wave equations of motion.
采用时间上二阶、空间上高阶近似的交错网格高阶差分公式求解三维弹性波位移-应力方程，并在计算边界处应用基于傍轴近似法得到的三维弹性波方程吸收边界条件。
Here, we use second-order, temporal - and high-order spatial finite-difference formulations with a staggered grid for discretization of the 3-d elastic wave equations of motion.
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