光反射

The dark filamentary dust not only absorbs light, but also reflects the light of several bright blue stars that formed recently in the nebula.

黑暗的丝状尘埃不仅仅吸收光，同时还反射数颗明亮蓝色恒星发出的光，而它们刚刚在星云内诞生不久。

In the case of the jewel beetle's external skeleton, its five, six and seven sided cells spontaneously arrange themselves to reflect light at certain wavelengths that produce green, yellow and red colors.

而对于综合吉丁虫的外骨骼来说，其上的五、六、七边形细胞会自发地排列以使得它们能反射特定波长的光，进而产生绿、黄、红色的光。

5Calibration of the laser optical axis of the basic principles and methods isdiscussed, laser target designator axis calibration device is designed, the key technologythat a large caliber, long focal distance from the axis parabolic reflector design is solved,and the cross target line which can be used for a wide variety of observation devices isdesigned, the final calibration accuracy is 0.05mrad.

5论述了激光光轴校正的基本原理和方法，设计了激光目标指示器光轴校正装置，解决了其中的关键技术：大口径、长焦距离轴抛物面反射镜的设计问题，并设计了可用于多种观瞄装置的十字靶标，最终的校正精度达0.05mrad。

A Thermally switchable and flexible LCDs:A PDCLC sample is irradiated with a UV light through a photo-mask having the desired patterns, the CLC texture in the UV-cured region is changed from reflective planar texture to the scattered focal conic one. Additionally, the clearing temperature of the LCs in UV-cured regions is higher than that in uncured regions. Therefore, if the cell temperature is lower than Tuc-I (Tuc-I and Tc-I), the scattered patterns are displayed on the reflective background. Moreover, the addressed patterns are invisible when the cell temperature increases higher than Tc-I.

利用紫外光经过透射光罩写入图像，使聚合区域为散射之focal conic态，且该区域之相变温度较未照光区域高，故低於Tuc-I时，散射的focal conic图像显示於反射的planar结构背景上；而介於Tc-I及Tuc-I之间时，散射的focal conic图像显示於穿透的isotropic态背景上；若温度高於Tc-I时，图像与背景皆是isotropic态，亦即关闭显示图像。

Best performance usually occurs when the output is funneled using a reflector to focus the source into the light pipe.

最好的成效为利用反射器使输出光为漏斗形的聚焦至光管中。

Simulation result shows that a solar furnace using an 8m×8m non-imaging focusing heliostat with 289 mirrors coupled with a spherical concentrator with 0.7m aperture and 27cm focal length is capable of achieving flux concentration of 25,000 suns.

模拟结果显示，使用由289块子镜组成的8m×8m的非成像聚光定日镜的太阳炉，配合一个0.7m口径，焦距27cm的球面二次反射镜，可以达到25，000个太阳的聚光效果。

When the temperature changes, several device parameters such as the transmittance, the extinction ratio and the curve of the transmittedintensity will change accordingly for devices made of the Iceland crystal.

其次系统分折了温度对格兰·泰勒棱镜和格兰·付科棱镜的透射光强曲线的影响，利用光的干涉原理和不同振动形式的反射比公式，得到了格兰棱镜在同一入射波长、温度改变时的扰动因子极大值点的移动量以及相同的温度改变、不同人射波长时扰动困子极大值点的移动量。

As the film sample is fixed on one plane by tighten bolt,this device can realize the deflection of optical path.And the reflectivity of the sample is measured by using oblique incident ray.

使用该装置并通过平面和样品背后的顶丝固定薄膜样品的安装方式，可实现光路转折，完成斜入射光对薄膜样品反射率的测量。

The length of the solar light pipe is 0.55 m with a diameter of 0.28 m.

导光管的长度为0.55 m，直径为0.28 m，导光管内表面的平均反射比为0.82。

Their hunting is done with a lot of guess work thrown in, that probably why most Siamese cats are pampered house cats it was too hard to make a living as a mouser.

从猫寻找在晚上漫游他们的眼睛被创造允许同样多光的事尽可能，他们的视网膜用帮助进入更多光的一部反射性影片涂。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐