光点

Such as burning glass electric rice cookers, electric heated glass cookers, electric Niunaibei glass, glass, electric heated rice bags, glass, such as electric ovens A diagnostic radiology, with the ray protective devices, including the limited-hole plate (4), limited-hole plate (1), servo motor, with the upper limit switch (3), limit switch (7), and so on, installed in the activities Bed-shading of the ball before relying on the upper and lower limit switch servo motor control circuits and chain control, automatic transform limited-hole plate position, perspective and point of excess-ray films blocked so that patients and doctors have been reliable protection .

诸如玻璃电热烧锅、玻璃电热暖锅，玻璃电热牛奶杯、玻璃电热恒温电饭包、玻璃电热烤炉等一种放射线诊断时用的射线防护装置，包括方孔限光板（4）、圆孔限光板（1）、伺服电机、上限位开关（3）、下限位开关（7）等，装设在活动床球管遮光器前，依靠伺服电机上下限位开关及控制电路进行连锁控制，自动变换圆孔限光板的位置，将透视和点片时的多余射线遮挡住，使患者和医生都得到可靠的防护。

One of the important tasks in my dissertation is to investigate Fraunhofer diffraction pattern of a polychromatic, spatially coherent wave diffracted by an annular aperture. The phenomena of spectral anomalies in the vicinity of the Airy rings in Fraunhofer diffraction pattern are investigated in detail. The effect of the parameters of the annular aperture on the spectral changes is studied particularly.

本学位论文的一部分内容进一步研究了在夫琅和费衍射模型下，多色空间相干光经过环形光阑衍射后的光谱变化情况，详细讨论了在该模型下振幅为零的点附近的光谱奇异现象，着重研究了改变环形光阑参数等对光谱变化的影响。

The light curve of five kinds of landscape lianas commonly used in southern China were measured by LI-6400 portable photosynthesis system and fitted by non-rectangular hyperbolic model. Light compensation point, light saturation point, Pn,ɑ of the 5 lianas species were analyzed comparatively. The results indicated that there are significant differences in light response of photosynthesis among them.

采用Li-6400便携式光合测定仪对5种华南地区常用园林绿化藤本植物进行了光响应曲线的测定，并用非直角双曲线模型对其进行拟合，对比分析了5种藤本植物的光补偿点、光饱和点、最大净光合速率、最大表观量子效率。

A way of designing the scattering point of light guide plates is introduced in this article.

提出一种设计导光板散射点的方法，通过对由该方法设计的样品进行光学性能测试，得到的结论是：该方法设计的导光板的光均匀度可以达到74。

Because the magneto-optical recording density isin inverse proportion to the square of wavelength,and the GaN-based diode ina blue light range is at the stage of practical usage,it is very important to studythe magneto-optical materials in a blue light range.

由于磁光记录密度反比于光波长的平方，而且目前以GaN为基的蓝光二极管已经实用化，从而研究蓝光波段的磁光材料十分重要，这点是本论文的主要出发点。

Based on the dual-beam interference principle and white light interference feature, this dissertation designs the SWLI surface 3D topography measuring system and analyzes the principle and characters different from that of traditional monochromatic light interference. According to different descriptions of the white light interference feature, the optimal interference point extracting algorithms are classified, analyzed and compared in detail. In the light of the design rule of improving measuring precision and speed simultaneously, two new types of algorithms, named Feature Matching algorithm and Intensity Contrast Moving Window algorithm, are designed to acquire good results according to practical conditions.

基于双光束干涉原理及白光干涉特性，本文设计了扫描白光干涉法表面三维形貌测量系统，分析了该方法区别于传统单色光干涉测量的测量原理及特点，根据对白光干涉特征不同的描述方式对最佳干涉点提取算法进行了分类、分析与比较，并在提高测量精度与测量速度设计原则的指导下，根据测量系统的实际条件设计了两种新的算法：特征匹配法和对比度移窗法，在实际测量中达到了比较好的测量效果。

The light sources of edge-type LED backlight units in small/medium displays are an array of LEDs located inside a lamp reflector and near the incidence plane of a light guide plate.

中小尺寸LED背光模组发光源为置於侧边之复数个LED点光源，其所面临的固有问题在於入光侧容易产生明暗不均，亦即导光板在靠近LED光源处会出现过之投灯亮带而在LED之间则容易形成较暗之暗区。

Basing on electromagnetism theory characteristic of light wave, the formula of the relation of refringence e light is inferred under any axis location and any angle, when it is refracting.

基于平面光波在晶体中传播的电磁理论特性，推导了光波在晶体表面折射时，双折射光波中e光线透过晶体出射点的位置受到任意光轴取向、任意入射角影响的关系式；利用MATLAB对关系式进行了数值计算分析，绘出双折射e光与任意光轴取向、任意入射角关系曲线，并给出了对应的定量关系式；实验验证了该公式是正确的。

Lighting灯光I normally use quite a lot of light sources; I place them so I can highlight details of the scene. In this image I have used 13 lights: 4 omni lights as ambient lighting, 2 to highlight the form of the engine, 3 spotlights to highlight the back of the engine, 3 highlight to stress the specular and the greasy effect on the shell, a spotlight behind the snail neck for the sub surface scattering, in addition to the sun with area shade and the sky with a HDRI with an atmosphere similar to the photograph of the road for the global lighting I have used a surface with an asphalt texture for the floor and the yellow lines only to be reflected on the engine and to add some radiosity to the snail body and shine.

通常我使用很多的光源，我到处放置它们，这样我才能照到足够多的细节，在这幅图里我使用了13盏灯，4 盏点光源作为环境光，2盏来照亮引擎的形状，三盏聚光灯用来照亮引擎的背面，三盏来强调蜗牛壳的高光及油腻的感觉，有一盏蜗牛脖子背后的灯光来表现3S半透明效果，另外还有一盏太阳光来获得各个区域的阴影，以及一个赋予了HDRI贴图的sky，来作为全局光，我使用了一种沥青材质作为地面材质，并让引擎能反射地面上的黄色带子，并为蜗牛身体与光射线增加了一些radiosity，以取得得与背景类似的灯光环境。

With the development of optical communication system from point-to-point to multi-wavelength optical network, optical add/drop multiplexers are considered key components in wavelength-division-multiplexing system.

中文摘要随着光通信系统从单波长点对点的光线路系统向多波长网络化演进，光分插复用器作为光传输网的重要器件逐渐变得越来越重要。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。