短語(yǔ)詞組短語(yǔ)partial linear differential equation [數(shù)]線性偏微分方程partial functional differential equation 偏泛函微分方程partial l differential equation 偏微分方程parabolic partial functional differential equation 拋物型偏泛函微分方程nonlinear partial -differential equation 非線性偏微分方程hyperbolic partial functional differential equation 雙曲型偏泛函微分方程systemof partial functional differential equation 偏泛函微分方程系統(tǒng)nonlinear partial integral differential equation 非線性偏積分微分方程 返回 partial differential equation