短語詞組短語integral and differential equation 積分微分方程integral cosine differential equation 積分微分方程integral of differential equation 微分方程的解integral partial differential equation 積分偏微分方程neutral integral -differential equation 中立型積分微分方程volterra integral and differential equation volterra 積分微分方程boltzmann integral -differential equation 玻耳玆曼積分微分方程the integral -differential equation 積分fredholm integral -differential equation 弗雷德霍姆型積分微分方程 返回 integral differential equation