短語詞組短語difference -differential equation 繙譯nonlinear difference -differential equation 非線性差分微分方程stochastic difference -differential equation 隨機(jī)差分微分方程ordinary difference differential equation [數(shù)]常差分微分方程mixed type difference differential equation 混郃型差分微分方程neutral type difference differential equation 中立型微分差分方程nonlinear difference differential mKdV equation 非線性差分微分mKdV方程advanced differential difference equation 超前型微分差分方程differential difference equation dde 微分差分方程 返回 difference differential equation