We have computer optimization techniques so we can design a far more efficient aerodynamic shape, versus having to iterate slowly through wind tunnels.

有计算机优化技术，这样就可以设计出更有效空气动力学形，而是在风洞中缓慢迭代。

And in this case, it runs it for multiple different iterations, tries to find an average and it looks like on this computer, at least, it averages at 4.87 seconds.

在本例中，它运行多次迭代，尝试找到平均值，在这台计算机上看起来至少是 4.87 秒。