differerce equation的用法和樣例：
例句
- These results generalize and improve some known results about both neutral and delay difference equation.
所有結果推廣和改進了關于中立和時滯差分方程已有結果。 - The unified differential equation is developed after making the stochastic excitation and observation noise be of equal dimensions.
將隨機輸入和觀測噪聲等維化處理后，建立了結構振動及其控制系統差分方程的統一模式。
