反射

The specificity of the surface gained in this way is that when the beam of rays parallel to its axis of rotation falls on it, the beam is reflected so that all the rays meet in one point, known as the focus, in the same way that optical lenses focus light rays in their focus.

抛物线的表面或曰抛物面，是由抛物线围绕其对称轴旋转而成，其特点是，和抛物线对称轴平行的射线波束被抛物面所反射，所有的电波都在同一点汇聚， 1 September，2009 3D 角反射天线作馈源的 5.8GHz 偏馈抛物面天线我们把这点叫做焦点。

Luneberg lens is a spherical lens which its permittivity varies with normalized radial coordinates. It is fabricated by using different homogeneous dielectric centrically layered media. The lens can focus a parallel beam of rays from any direction exactly at a point on the surface. If it is made by adding a reflecting surface "metallic cap", it is called Luneberg lens reflector. It can reflect incident wave into plane wave in incoming direction. It is usually applied in antenna, radar reflector,satellite-based, and mobile-communucation.

龙伯球透镜为一种介电系数与半径成一固定比例的球形透镜，大部分是由数层不同介电系数介电质组合而成，而其主要特性能够把入射波聚焦到球表面一点，假使在透镜表面处镀上一圆锥角金属层即为龙伯球透镜反射器，能把入射波依平面波的型态反射回原入射端，通常用於天线、雷达、卫星通讯、军事等方面。

Product Category screen has tempered glass safety, AG anti-reflective glass, antireflection AR glass, mirror glass screen, the perspective of visual glass, back to the box-shaped glass, ITO glass, solar glass and the high permeability of various electrical appliances, such as supporting glass .

产品种类有视屏安全钢化玻璃、抗反射AG玻璃、减反射AR玻璃、镜面视屏玻璃、角度可视玻璃、回形框玻璃、ITO玻璃、高透太阳能玻璃及各种电器的配套玻璃等。

If the surface is smooth and reflects poorly if the surface is pitted.

雷射光的反射是足够的，假如这表面是凹痕的话这反射是不足的。

The proper optical fiber,plane directional optical grating and concave reflector were chosen and integrated together based on the theoretical computation for the optical layout of the spectrometer.

设计一种微型可见光CCD摄像光谱仪的光学结构，通过理论计算，选用合适的光纤、平面定向光栅和凹面反射镜，并将它们合理组合，采用聚焦反射和分光的方法，将待测光进行色散，直接投射到CCD接收器件的表面。

First, The relation between one dimension plane detonation wave configuration and mesh size was investigated, then, regular reflection and Mach reflection was studied too.

首先研究了一维平面爆轰波结构与网格尺寸的关系，然后研究了柱面散心爆轰波结构及其正规反射、Mach反射问题。

We have seen that, when unpolarized light is reflected, there is a preferential reflection for light polarized perpendicular to the plane of incidence.

如图42-4所示。我们看到，当非偏振光反射后，就会有偏振光从垂直于入射面的方向反射出来。

The totally reflected beam by a dielectric interface actually exhibits a lateral shift from the position of geometric reflection in the plane of incidence,and a transverse shift normal to the plane of incidence.

光束在电介质界面发生全反射时，实际反射光束会在入射面内相对于几何反射光束产生一侧向位移，在垂直于入射面的方向产生一横向位移。

The reflection coefficient and refraction coefficient are also given; the analysis shows the versatility of the principle of least action ,Snell s law and Fresnell s law in the research on the left-handed material,and the negative refraction effect is explained.

研究了电磁波在左右手介质界面折射与反射的特性，给出了折射系数和反射系数，从另外一个方面探讨了最小作用量原理在左手材料中的适用性；从电动力学和最小作用量原理证明了Snell定律，验证了Snell定律在左手材料中的适用性，并且得到Fresnell公式在左右手材料中的一致性。

The combined application of seismic refraction and wide angle reflection methods,prospection of vertical seismic reflec...

地震折射波法和宽角反射波法的联合应用，近年来发展的垂直反射波法的探测，地震层析成像技术，地震面波的三维速度结构，物理模拟和数字模拟技术与波形反演、联合反演的应用，深化了对岩石层本体的认识。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。