折射

折射（英语：refraction），一种常见的物理现象，意指当物体或波动由一种媒介斜射入另一种媒介造成速度改变而引起角度上的偏移。「折射」不一定等同于「光的折射」，所以虽然光线（一种横波）会因为「折射率」的不同令光的运行方向改变，但「折射」现象并不能用以证明光线是一种波动。最普遍的例子就是用手枪瞄准，当子弹穿过水时，其角度就会因为折射而偏移。

而所谓的「屈折」，也就是「光的折射」，专指光从一种介质进入另一种具有不同折射率之介质，或者在同一种介质中折射率不同的部分运行时，由于波速的差异，使光的运行方向改变的现象。例如当一条木棒插在水里面时，单用肉眼看会以为木棒进入水中时折曲了，这是光进入水里面时，产生折射，才带来这种效果。

Refraction 折射

$Light on air–plexi surface in this experiment undergoes refraction (lower ray) and reflection (upper ray).$

$Refraction in a glass of water. The image is flipped.$

$An image of the Golden Gate Bridge is refracted and bent by many differing three-dimensional drops of water.$

$Refraction of light at the interface between two media of different refractive indices, with n2 > n1. Since the phase velocity is lower in the second medium (v2 < v1), the angle of refraction θ2 is less than the angle of incidence θ1; that is, the ray in the higher-index medium is closer to the normal.$

Refraction is the change in direction of propagation of a wave due to a change in its transmission medium.

The phenomenon is explained by the conservation of energy and the conservation of momentum. Due to the change of medium, the phase velocity of the wave is changed but its frequency remains constant. This is most commonly observed when a wave passes from one medium to another at any angle other than 0° from the normal. Refraction of light is the most commonly observed phenomenon, but any type of wave can refract when it interacts with a medium, for example when sound waves pass from one medium into another or when water waves move into water of a different depth. Refraction is described by Snell's law, which states that, for a given pair of media and a wave with a single frequency, the ratio of the sines of the angle of incidence θ₁ and angle of refraction θ₂ is equivalent to the ratio of phase velocities (v₁ / v₂) in the two media, or equivalently, to the opposite ratio of the indices of refraction (n₂ / n₁):

单词	refraction
释义	refraction /rɪˈfrækʃn//rɪˈfrækʃn/ 英汉-汉英词典 n. 折射(程度) n. 折射角词组 \| 习惯用语 refraction index 折射指数，折光指数 index of refraction [物]折射率 negative refraction 负折射 double refraction 双折射 refraction coefficient 折射系数 seismic refraction 震波折射英语例句库 The past rectification operation aiming at myopia refraction patients has developed the rectification treatment aiming at hyperopia and astigmia patients. 过去仅针对近视屈光患者施行的矫正手术，目前已发展出可针对远视与散光患者施行的矫正治疗。 The parallactic refraction between the stars and the satellite is small and well determinate, except for the irregular stellar movements known as erratics. 除了通称为游动的不规律星体运动之外，恒星和卫星之间的视差折光差微小，而且是容易测定的。 On the basis of the refraction principle of soluble solid, the content of the soluble saltless solid in soy sauce was determined by refractometry. 基于可溶性固形物的折射原理,用折光计法测定酱油中可溶性无盐固形物的含量,取得了与重量法基本一致的结果。 The article compares the difference of image check results between uncovered microcoria and bechterew on the basis of check—up and analysis of 518 patients who suffer from improper refraction. 本文对518例屈光不正患者加以检测分析,比较了不同遮盖时小瞳与散瞳检影的结果差别。 Based on the double refraction principle of outgoing beam in the biprism,the displacement method for measuring the small angle of biprism is presented.The error of this method is also discussed. 利用双棱镜引起出射光束方向双向偏折的原理,提出了一种位移法测量玻璃双棱镜微小底角的新方法,介绍了测量的基本原理,讨论了测量误差. 声明：以上例句、词性分类均由互联网资源自动生成，未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。原声例句经济学人-科技 Those telescopes that do not employ reflection use refraction. 那些不利用反射的望远镜利用的是折射。 Crash Course 天文篇 This refraction has a couple of interesting results. 这种折射可以导致几个有趣的结果。 6 Minute English 六分钟英语 Is it a) dispersion, b) reflection, or c) refraction? 是 A. 散射，B.反射，还是 C. 折射？经济学人（汇总） Slowing a wave changes its direction, a process called refraction. 放慢光波改变了其方向，这个过程被称为折射。 BBC 纪录片《中国老师来了》 Now we're going to talk about refraction of light. 今天我们要讲的是光线的折射。 PBS趣味科普 And when light hits these layers, it bends through a process called refraction. 当光线照射到这些层时，它会通过一个叫做折射的过程弯曲。 6 Minute English 六分钟英语 Hmmm, well, I'm not a scientist, so I'll have a guess as c) refraction. 我不是科学家，所以我要猜 C. 折射。可汗学院Khan Academy Middle school physics - NGSS初中物理 And we talk about that in another video, and we call that refraction. 我们在另一个视频中讨论了这一点，我们称之为折射。可汗学院Khan Academy Middle school physics - NGSS初中物理 And this notion, you might have heard people call it refraction. 这个概念，你可能听过人们称之为折射。 Crash Course Physics 速成课物理 How does that change the law of refraction? 这怎么能改变折射定律呢？中文百科折射折射（英语：refraction），一种常见的物理现象，意指当物体或波动由一种媒介斜射入另一种媒介造成速度改变而引起角度上的偏移。「折射」不一定等同于「光的折射」，所以虽然光线（一种横波）会因为「折射率」的不同令光的运行方向改变，但「折射」现象并不能用以证明光线是一种波动。最普遍的例子就是用手枪瞄准，当子弹穿过水时，其角度就会因为折射而偏移。而所谓的「屈折」，也就是「光的折射」，专指光从一种介质进入另一种具有不同折射率之介质，或者在同一种介质中折射率不同的部分运行时，由于波速的差异，使光的运行方向改变的现象。例如当一条木棒插在水里面时，单用肉眼看会以为木棒进入水中时折曲了，这是光进入水里面时，产生折射，才带来这种效果。英语百科 Refraction 折射 $Light on air–plexi surface in this experiment undergoes refraction (lower ray) and reflection (upper ray).$ $Refraction in a glass of water. The image is flipped.$ $An image of the Golden Gate Bridge is refracted and bent by many differing three-dimensional drops of water.$ $Refraction of light at the interface between two media of different refractive indices, with n2 > n1. Since the phase velocity is lower in the second medium (v2 < v1), the angle of refraction θ2 is less than the angle of incidence θ1; that is, the ray in the higher-index medium is closer to the normal.$ Refraction is the change in direction of propagation of a wave due to a change in its transmission medium. The phenomenon is explained by the conservation of energy and the conservation of momentum. Due to the change of medium, the phase velocity of the wave is changed but its frequency remains constant. This is most commonly observed when a wave passes from one medium to another at any angle other than 0° from the normal. Refraction of light is the most commonly observed phenomenon, but any type of wave can refract when it interacts with a medium, for example when sound waves pass from one medium into another or when water waves move into water of a different depth. Refraction is described by Snell's law, which states that, for a given pair of media and a wave with a single frequency, the ratio of the sines of the angle of incidence θ₁ and angle of refraction θ₂ is equivalent to the ratio of phase velocities (v₁ / v₂) in the two media, or equivalently, to the opposite ratio of the indices of refraction (n₂ / n₁): 近义、反义、联想词近义词 n. physical phenomenon, bending, bend 联想词 refractive折射的;diffraction衍射，绕射;optical光学的;prism棱柱;dispersion散布;curvature弯曲;cornea角膜;wavelength波长;polarization极化;optics光学;corneal角膜的;
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refraction /rɪˈfrækʃn//rɪˈfrækʃn/

折射

Refraction 折射

近义词

联想词