短語詞組短語exact differential equations 正合微分方程式exact differential transformation 全微分變換exact differential form [數(shù)]恰當(dāng)微分形式;恰當(dāng)微分式exact differential equation 全微分方程;[數(shù)]恰當(dāng)微分方程;正合微分方程;正合方程式exact differential equation detail 恰當(dāng)微分方程semi -exact differential [數(shù)]半正合微分exakte differentialform exact differential form 精確微分形式Closed and exact differential forms 閉形式和恰當(dāng)形式non -exact differential equation 非恰當(dāng)方程 返回 exact differential