胡歌参加过的节目:What is refraction?

refraction
[ri5frAkFEn]
n.
折光, 折射

refraction
AHD:[r¹-fr²k“sh…n]
D.J.:[ri6fr#k.*n]
K.K.:[r!6fr#k.*n]
n.
The turning or bending of any wave, such as a light or sound wave, when it passes from one medium into another of different density.
折射 当光或声波等物质从一个媒体进入别一个密度不同的媒体中时产生的转向或折回
Astronomy
【天文学】
The apparent change in position of celestial objects caused by the bending of light rays entering Earth's atmosphere.
大气折射由于天体的光线进入地球大气层时发生折射而造成的其位置明显改变
Medicine
【医学】
The ability of the eye to bend light so that an image is focused on the retina.
眼睛的折射力眼睛折射光线的能量，从而使物体形象集中于视网膜上
Determination of the refractive characteristics of the eye.
屈光度测定对眼睛折射特性的测定

refrac“tional or refrac“tive adj.
refrac“tively adv
refrac“tiveness or re”fractiv“ity
AHD:[r¶”fr²k-t¹v“¹-t¶] n.

refraction
[ri5frAkFEn]
n.
折射作用, 折射度
折光差[度]
屈折
(对眼的)折射度测定

refractional
adj.

abnormal refraction
反常折射
acoustic refraction
声折射
anisotropic refraction
各向异性折射
anomalous refraction
反常折射
aplanatic refraction
等光程折射
artificial double refraction
人工双折射
astronomical refraction
大气折射
atmospheric refraction
大气折射
atomic refraction
原子折射度
attenuated total refraction
衰减全反射
coastal refraction
【电】海岸折射
conical refraction
锥形折射
convective refraction
对流折射
crystalline double refraction
晶体双折射
differential refraction
折射差数
double refraction
双折射
electric double refraction (=electric birefringence)
电场致双折射
external conical refraction
外锥形折射
flux refraction
【电】通量折射
overwater refraction
水面折射
positive refraction
【电】正折射
prismatic refraction
棱镜折射
terrestrial refraction
地面折射
wave refraction
波折射

什么是折射？

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