Because shock waves represent a stark and sudden change in refractiveindex, they show up clearly in schlieren photographs.
因为冲击波反映了折射率的明显和突然的变化,他们能在纹影摄影中清楚地被展现出来。
2
From the refractiveindex of each path it is possible-with the application of some suitably crunchy computing power-to produce a three-dimensional image.
从每条路径的折射率——再运用一些适当的计算处理能力——就可以组成一个三维图像。
3
They then cascaded the negative index medium with a positive refractiveindex medium so that the complete nanostructure behaved as one with an index of refraction of zero.