1、The index of refraction for the extraordinary ray is therefore a function of direction.
折射光線的折射率因此在各個(gè)方向不同。

2、Within the coupled resonant frequency region, the negative index of refraction can be achieved.
在負(fù)的磁導(dǎo)率和負(fù)的介電常數(shù)重疊的頻率區(qū)域，能得到一個(gè)負(fù)的折射系數(shù)。

3、What would a negative index of refraction look like?
如果折射率是負(fù)的,會(huì)發(fā)生什么事情?

index of refraction翻譯