refraction index

• 折射指数,折光指数

refraction index的用法和样例：

例句

1. The wings of the glasswing must, therefore, have the same refractive index all the way through them as otherwise this transparency could not possibly occur.
   因此，玻璃翅的翅翼必须具有相同的折射指数，否则很可能不会透明。