时域有限差分法；头模型；

<em>Finite</em> <em>difference</em> time domain method;

有限差分法和有限单元法在时间域里更为方便。

The time domain <em>finite</em> <em>difference</em> and the finite element method are more convenient.

时间域的麦克斯韦差分方程可以用一系列的差分方程来表达，这个过程叫做时间域有限差分法（FDTD）。

Maxwell's equations in time domain are expressed in difference equations by following Yee's <em>finite</em> <em>difference</em> time domain(FDTD) theory.

作者阐述并分析了有限差分方法和有限元方法。

Authors described and analyzed the <em>finite</em> <em>difference</em> method and finite element method.

有限差分法和有限体积法的区别与联系？

In <em>finite</em> <em>difference</em> (FD) methods, governing equations are discretized directly;

采用有限差分方法,对波动方程求数值解.

We use <em>finite</em> <em>difference</em> method to solve electromagnetic wave equation.

对于导热问题的求解常用两种方法：有限差分法和有限元法。

There are two methods for the key of heat exchange:finite element and <em>finite</em> <em>difference</em>.

对于导热问题的求解常用两种方法：有限差分法和有限元法。

There are two methods for the key of heat exchange: finite element and <em>finite</em> <em>difference</em>.

对一类非线性扩散模型建立了一种有限差分方法.

A <em>finite</em> <em>difference</em> method is proposed for a nonlinear diffusive model.

计算中心数学模型采用有限差分的形式进行计算；

The data or dealt with <em>finite</em> <em>difference</em> calculus in calculate center .