central difference的用法和样例：
例句
- By the example, it was proved that diffusion of error from single point subdomain integration is more slow than central finit difference.
算例也表明了单点子域积分法具有比中心差分法误差扩散慢的特点。 - The pulsating flow field was simulated by the large eddy turbulence model and the momentum equations were discretized with the unbounded central difference scheme.
脉动流场计算采用大涡模拟湍流模型，动量方程的离散格式采用有限中心差分格式。
