查询词典 a beam of light

Second, in this paper we recite and analyse how the painting masters of the different history stage used light and colors from "Prehistorical art" to "Rome art" imitating light and colors,"Middle ages art" creating "Sanctitude light","Revival of learning" representing nature light and colors and then light was used to create the drama light, Impressionistic using the light of science and impairing light instead emphasizing sensibility colors in modern times. Painting lives by the light and colors all along in the painting history.

从史前艺术、希腊罗马艺术的模仿光与色，到中世纪艺术创造神圣之光，再到文艺复兴的再现自然光线与色彩，然后到17世纪的主观处理光线形成&戏剧之光&、印象派的科学用光、现代绘画淡化光线并强调情感色彩，光线和色彩一直贯穿在历史的绘画长河里。

Our major products contain Christmas light ,Holiday light ,Rice bulb or LED Rope light ,Net light ,Curtain light ,Twinkle light ,Belt light ,Icicle light ,Motif light and so on.

我公司的主要产品包括圣诞灯、节日灯饰，米泡和LED系列的彩虹管、网灯、窗帘灯、护栏灯、灯串，冰条灯和造型灯等灯饰产品，并广泛应用于城市亮化工程。

In order to obtain symmetry and parallel polarized light, the double Wollaston prism is amended. After getting symmetric polarized light at a big splitting beam angle, an ordinary triangular prism is added so that the symmetric light beam can be divided into parallel light beams. The distance between the triangular prism and the double Wllaston prism is changed so that the distance of the shearing parallel light can be changed.

为了获得对称且平行分束的偏振光，对双wollaston棱镜进行了修正，在获得大分束角的对称偏振光后，配合普通玻璃三棱镜，使对称分束光变成平行分束光，通过改变三棱镜与双wollaston棱镜间的距离来改变平行光的剪切距离。

The nonlinear Goos-Hanchen shift of a reflection light beam and the refraction angle of a transmission light beam can all be changed by adjusting the power of the incident light beam.

同时发现反射光束的非线性古斯-汉辰平移量及透射光束的折射角都可以通过适当改变入射光束的功率来调整。

The influences of the light beam drift, the light beam incurve, the light beam radom tremble and etc.

综合考虑了光源漂移、光线弯曲、随机抖动等因素的影响。

The maesurement errors in the laser collimation are mainly caused by the light beam drift, the light beam incurve and the light beam random tremble.

论文中对长距离激光准直光束特性进行了较详细的实验研究和理论分析认为，影响其准直精度的三个重要因素是光源漂移、光线弯曲和随机抖动。

The method utilizes an optical device which consists of polarization control elements and polarization beam splitting pieces for realizing the multi-switching of polarization or non-polarization light; in a position sequence, one polarization beam splitting piece is arranged on a main optical path at the back surface of each polarization control element, thereby commonly constituting a 'single-pole double-throw' optical switch with a controller; the controller changes the polarization state of input light beams by driving the polarization control elements according to the control logic, and the input light beams are switched to any one path on an output channel through the polarization beam splitting pieces, thereby completing the designated optical information processing function.

利用偏振控制元件和偏振分束片两种光学元件组成的光学装置实现偏振或非偏振光的多路切换；在位置序列上，每个偏振控制元件后面主光路上放置一块偏振分束片，并和控制器共同构成一个'单刀双掷'光开关；控制器按照控制逻辑驱动偏振控制元件改变输入光束的偏振态，并通过偏振分束片将输入光束切换到输出通道上的任何一路，来完成指定的光信息处理功能。

In strictly, it is hard to make the light normal incident into the sphere, double refraction will take place in crystal sphere when a TEM〓 mode Gaussian beam oblique incident into the sphere, and the two orthogonal polarized beams are both elliptical Gaussian beam. The ellipticity and eccentricity of the elliptical Gaussian beam will change with the incident angle, and for a fixed incident angle, they will change with the shifting of incident beam waist position.

由于严格意义上的正入射较难实现，基模圆高斯光束斜入射晶体球后将在球内产生双折射，且球内偏振态正交的两束折射光都将是椭圆高斯光束，它们的椭圆度e和偏心度Δ随入射角的改变而改变，在入射角一定的情况下，入射光束束腰的移动也将改变这两束折射光的椭圆度e和偏心度Δ。

To make picture clear, the electron beam that must come out to be being hit from electron gun undertakes focusing is handled, let electron beam pass electron lens, be opposite with optical lens of beam of light collect action likeness, the electron beam assemble that opens scattering rises, get on fluorescent screen one shines again small spot, add the effect of scanning circuit, ability shows clear picture.

为了使图像清楚，必须对从电子枪打出来的电子束进行聚焦处理，让电子束通过电子透镜，和光学透镜对光束的聚集功能相似，把散射开的电子束会聚起来，在荧光屏上得到一个又亮又小的光点，加上扫描电路的功能，才能显示清楚的图像。

They require well collimated light beam. For this, we introduced collimator. The collimator is used for collimating emanative Gaussian beam to obtain almost parallel beam with small emanative angle, or focusing parallel beam into fiber.

在光隔离器、光环形器、光开关、光衰减器、光波分复用器等光器件的工作过程中，对高斯光束的准直性要求非常高，这样就引入了光纤准直器。

In contrast to the ubiquitous rising-sun-with-rays military flag of the Japanese, Chinese banners and ensigns feature a range of designs.

与遍地都是的太阳军旗不同，中国人的旗帜和徽章设计得各式各样。

From their small corner of Feng's Guangzhou headquarters -- a jumble of pink leashes, squeezable rubber steaks, and plastic doggy Santas for Fido's stocking -- Soleil's designers come up with at least five new products a month.

从Feng 设在广州总部的产品展示柜台上可以看到，Soleil的设计师每月至少设计出5件新产品。