difference method的用法和样例：
例句
- The nonlinear differential equations are solved using finite difference method.
用有限差分法求解非线性微分方程组。 - It is one of approaches for unsteady inverse problems of oscillating airfoil to solve unsteady Bluer equations with finite difference method.
利用有限差分法解非定常欧拉方程是振荡机翼非定常气动反问题的一种求解方法。 - This confirms the accuracy of the perturbation method which we adopted.
这就证明了我们采用的摄动法有较好的准确性。
