常見例句雙語例句For one-dimensional convection-diffusion equation, at first, the differential equations is semi-discrete approximation.本文研究了求解對流擴(kuò)散方程的指數(shù)型差分格式。The molecule flow diffusion equation and the boundary conditions are given. The solution with linear approximation of entrance pressure is presented.給出了分子流擴(kuò)散方程的邊界條件，推導(dǎo)出入口壓力在線性近似下方程的解。In this paper the optimal design problem of the diffusion-fission cross section for a dynamical reactor is considered on the basis of the simple energy static diffusion approximation equation.本文從單能擴(kuò)散近似方程出發(fā)討論核反應(yīng)堆散射裂變截麪的最優(yōu)設(shè)計問題，這個問題在數(shù)學(xué)上實(shí)質(zhì)上也是一個逆問題。 返回 diffusion approximation equation