parabolic equations的用法和樣例：
例句
- So this method is effective in soluting two-dimensional parabolic equation and can be widely used.
該方法是求解二維拋物型方程的有效方法，必將得到更廣泛的應用。 - Part II, a parabolic initial boundary value problem in unbounded domains in three dimensions is studied.
第二部分，研究求解無(wú)界區域上三維拋物型方程初邊值問(wèn)題的數值方法。
