查询词典 law of refraction

Brewster's Law states that the index of refraction in a strained material becomes directional, and that the change of the index is proportional to stresses.

布鲁斯特的法国表示，折射率，在紧张的物料定向，并改变该指数是成正比讲。

A sectional hyperbola cylinder sound lens using for oil recovery is designed according to the refraction law of sound.

对于一定的油井，无法改变油井中的原油及其岩层对超声波的衰减作用，但是，利用声透镜可以改变超声换能器所辐射出的超声

An optical system with refraction and total internal reflection was proposed according to the luminous characteristic of LED and the law of energy conservation. The ordinary differential equations satisfying the spots on the contour curve of TIR refractive and reflective planes were established. The coordinates of points on profile curves were obtained by solving these ordinary differential equations using Runge-Kutta method. The profile curves were acquired by curve fitting of the coordinate spots with software UG, and then TIR model of the projector and data of the surface shape suitable for NC manufacture were obtained.

根据LED的发光特性以及能量守恒定律选择采用折射全反射光学系统，通过建立TIR折射面及全反射面轮廓曲线上的点所满足的常微分方程，利用RungeKutta求解常微分方程得到轮廓曲线上点的坐标，再在UG中对坐标点进行曲线拟合得到轮廓曲线，进而得到TIR模型及适合数控加工的面形数据。

From the theory of relativity,this paper useing Lorenty transformation of wave vector ,law of reflection and law of refraction in a surface of moving mediun is discussed.

从狭义相对论的波矢量间的洛仑兹变换出发，推导出光波在运动媒质表面的反射定律和折射定

He showed by using geometric construction and the law of refraction (also known as Descartes' law) that the angular radius of a rainbow is 42 degrees i.e.

他使用几何结构和折射定律显示了一次彩虹的角半径（也就是彩虹边缘的虹膜与通过彩虹中心的阳光的内角）是42度。

According to the law of refraction, a measuring apparatus was designed, which can measure refractive index of transparent medium. This paper expounded the design principle of the measuring apparatus, its usage and some experimental content, and gave measurement results of refractive index on some materials.

将CCD测试技术引入物理实验，介绍了依据折射定律设计的能够测量任何透明介质折射率的仪器原理、使用方法及开设的部分实验内容，给出了对一些材料折射率的测量结果。

The Snell law of refraction is:n_1,sinα=?

是金属的复折射率，因此，折射角？

Descartes had either learned the sine law of refraction from Willebrord Snell (Snell's Law) [6] or had discovered it independently, and this allowed him to quantify spherical aberration.

笛卡儿要么据悉，正弦规律的折射，从willebrord snell [ 6 ]或发现了它独立，这使他能够量化球面像差。

Based on Fermat's theorem, the law of reflection and refraction is obtained, and the geometrical ray tracing method of reflected light is introduced. In response to geometric optics rainbow theory and Airy rainbow theory, the relationship formula of the N-order rainbow angle with the refraction index and the Airy peak value position formula are derived, and the physics causation of the first order rainbow are discussed and analyzed in detail. The distribution properties of the first and second order Airy structures of spherical particles are calculated.

利用费马原理推导了反射和折射定律，以反射射线的跟踪为例介绍了几何光学射线跟踪方法的推导过程；根据几何光学彩虹理论和Airy理论，推导了N阶几何光学彩虹角与入射角和折射率的关系及Airy峰的位置表达式，详细阐述了一阶彩虹形成的物理原因，计算了球形粒子的一、二阶Airy分布。

The law of refraction, discovered first empirically by Willebrord SNELL, then subsequently derived formally by Descartes and Fermat, states that sin r = K sin i, where i is called the angle of incidence, the angle between the incident ray and the normal to the refracting surface.

折射的轨律，首先被 Willebrord SNELL 靠经验发现，接着后来正式被笛卡尔和 Fermat 认定，规定 sin r = K sin i ，这里 i 被称作入射角，入射光线和法线到折射平面之间的夹角。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。