index of refraction造句

1、The index of refraction for the extraordinary ray is therefore a function of direction.
折射光线的折射率因此在各个方向不同。

2、Within the coupled resonant frequency region, the negative index of refraction can be achieved.
在负的磁导率和负的介电常数重叠的频率区域，能得到一个负的折射系数。

3、What would a negative index of refraction look like?
如果折射率是负的,会发生什么事情?

index of refraction翻译