爱词霸英语   汉语   手机版   软件版下载 | English
每日一句:正在加载...
1.Design and growing 12.5 period Al 0.6 Ga 0.4 As/AlAs distributed Bragg reflection (DBR) structure by MOCVD on (311) GaAs substrates. By white light reflection mapping,the peak reflect wavelength uniformity is about 1.0 %,and absolute reflection of these DBR can reach above 90 %,The structure was investigated by double crystal X ray diffraction,and the DBR period of 84.5 nm for 580 nm wavelength was obtained.
设计并利用 MOCVD在 (311) Ga As衬底上生长了 12 .5个周期的 Al0 .6 Ga0 .4 As/ Al As黄绿光分布式 Bragg反射 (DBR)体系 ,测量了白光反光谱及其外延片峰值波长分布 ,反射率 90 %以上 ,波长不均匀性在 1.0 %以下 ; 利用了 X射线双晶衍射对其进行结构表征 ,5 80 nm波长 DBR结构周期为 84 .5 nm。收藏指正
2.Abstract: The reflective characteristics of sea and sky background radiation,which have important effect on the infrared signature from flight vehicle above sea,are studied in the paper.The statistical distribution of wave facet directions is discussed,the effects of randomly riging and falling sea wave on the sea surface radiation and on the sun light reflection are also discussed.Calculation methods of irradiance from sea surface radiation and reflected sun light on observation point are derived in the paper.Finally a computation example is given,which shows the sea and sky background radiation has important effect on infrared characteristic especially in the front area of a flight vehicle.
文摘:研究了对近海飞行体的红外特性有重要影响的海空背景辐射的反射特性.讨论了波浪面起伏随机规律,随机起伏对海面自身辐射及对阳光反射的影响,推演了此种随机起伏波浪面的自身辐射及反射的阳光在观测点形成的辐照度的计算方法.给出的算例结果表明,海空背景对飞行体的红外特性尤其对其前半球的红外特性有重要的意义.收藏指正
3.The scattering of incident light by reflection from a rough surface.
反射偶然的光线在粗糙表面的反射收藏指正
4.the reflection of light [heat; sound];
光[热; 声]的反射收藏指正
5.(especially of incident sound or light) not turned back by physical reflection.
(尤指附随的声音和光线)没有物理反射收藏指正
6.Under this condition, the stray light of a Cassegrain telescope comes from diffuse reflection of telescope tube wall, directly reflected light by a horseshoe mirror, diffuse reflection light by secondary mirror mount and is symmetrically distributed.
在这种条件下,卡塞 格伦望远镜系统杂散光成对称分布,主要来源于望远镜筒壁的漫反射光、马蹄镜的直接反射光和次镜支架的漫反射光。收藏指正
7.(of light rays) subjected to scattering by reflection from a rough surface or transmission through a translucent material.
(指灯光)容易因为粗糙表面的反射或者穿过半透明物质而散射。收藏指正
8.Nandor Bokor,Nir Davidson.Beam shaping with diffuse light by use of a single reflection[J].Applied Optics,2001,40:2132.
陈科华,陈多思.自聚焦透镜准直应用的长度计算与实验[J].光子学报,1992,21(2):145~151.收藏指正
9.The negetive effects of printing media on the light propagation of color reproduction, first surface reflection, absorption and multiple internal reflection ect, can be attributed to the defect or extension of dot areas.
网目调地图彩色印刷颜色再现 ,由于光在油墨和纸张第一表面上的反射和光在油墨和纸张内部的多重反射 ,将产生网点在转移过程中面积率的扩张和亏损。收藏指正
10.The moon looks bright because of the reflection of light.
月亮由于光的反射而显得明亮。收藏指正
尝试查询