水中的物体看起来会因为光的折射而变形。

Objects in water appear distorted due to the refraction of light.

光的折射使得一根吸管在一杯水中看起来是弯曲的。

The refraction of light causes a straw to appear bent in a glass of water.

一种材料的折射指数决定了它弯曲光的程度。

The refraction index of a material determines how much it bends light.

你可能还知道光的折射是因为玻璃或水中的光速比真空中要慢——但为什么光速会减慢？

And you might even know that light bends because it travels slower through glass or water than through air - but why does light slow down?

由于湍流而快速变化的折射在视线中会影响到光的不同颜色，这种影响也各不相同，一般会给恒星产生一种闪烁的效果。

Rapidly changing refraction due to turbulence along the line of sight affects different colors of light by different amounts and generally produces a twinkling effect for stars.

导光板超薄灯箱是光的折射和反正技术与激光雕刻相结合的高科技型产品，超薄美观，高效节能，电路安全可靠；

Lightguide exrtra-thin light box is a high-tech laser engraving products with thin and beautiful appearance, energy efficient characteristics, safe and reliable circuit.