根据激光晶体内热传导方程，画出了晶体内温度分布的三维图-Heat conduction equation of the laser crystal, crystal draw three-dimensional map of temperature distribution in

二维有限元分析热传导模型！可以改变传导率，模拟时间，平面等参数，输出包括时间在内的三维数据！-Dimensional finite element analysis of heat conduction model. Can change the parameters of the conductivity, the simulation time, flat, the output of three-dimensional data, including time!

一维，二维，三维热传导方程的数值求解（有限差分法等）。(Numerical solution of heat conduction equation)