光线

Its properties and tracing method are discussed. And the highlight-line model on triangular mesh surface is implemented. The theories put forward in this paper are demonstrated.

提出了三角网格曲面高光线模型的定义，讨论了相关性质及追踪方法，并在三角网格曲面上实现了高光线模型，验证了论文提出的相关理论。

Then, the model is extended to triangular mesh surface. The definition of highlight-line model on triangular mesh surface is put forward.

本文首先在NURBS曲面上实现了连续曲面的高光线模型，然后将高光线模型拓展到三角网格曲面中。

A too bright light, the visual pollution, Too dim light, will cause damage to eyesight.

太过明亮的光线，会对视觉造成污染；太过黯淡的光线，则会对视力造成损害。

Or ray of light in such cases, that is, listen, sniff, touch ..., known as the "white hole" is the second internal surface is not visible, no light, untouchable ....

在光线或射线等的情况下，是可见，可听，可嗅，可摸。。。，称为"白洞"；第二面是内部，是不可见，无光线，不可摸。。。。

Observation using transmission electron microscopy found the irreversible centripetal movement of chloroplasts in chlorotic plants, as a result occurred in three sequential events:(1) chloroplast positions changed from face position (with long axis of chloroplasts at the cell walls perpendicular to light ray) to profile position (with long axis chloroplasts near the cell walls parallel to light ray),(2) chloroplast shapes changed from long elliptical to circular,(3) chloroplasts were separated from the cell wall and moved to the center of the cell.

透射电镜观察发现失绿叶片中的叶绿体发生不可逆的向心运动，整个过程大致经历以下几个阶段：(1)叶绿体从叶绿体长轴垂直于光线转变至叶绿体长轴平行于光线；(2)叶绿体的形状从椭圆形转变为圆形；(3)叶绿体脱离细胞壁向细胞中心运动。

Mr. Zhang returned to China in 1998, and now he's the man with the money: As head of Enlight Pictures, a unit of Enlight Media and one of the new film companies aspiring to tell Chinese stories to a rapidly expanding domestic audience, he has plans for an initial slate of 40 movies, and no problem with financing.

张昭在1998年回到中国，现在功成名就，成为光线传媒有限公司旗下光线影业的总裁。这是一家新兴电影公司，致力于将中国的故事告诉越来越多的国内观众。张昭计划先期推出40部电影，而融资方面一点问题也没有。

In view of the facts that traditional graphical construction has less pertinence to stray light and tracing different incidence angle rays is fatiguesome and more likely to omit some rays, we proposed a reverse ray-trace method based on the ray reversibility. According to the method, a dot-matrix source was set at the image plane. Each dot emitted rays to fully cover the system aperture. A detector surface, large enough to receive all possible rays from the source, was set at object plane.

针对传统作图法设计遮光罩的针对性不强，且追迹不同入射角的光线繁琐、容易遗漏的问题，本文提出一种逆向追迹法，依据光的可逆性，在像面处设置点阵面光源，每一点都发出充满系统孔径的光束，在物面设置足够大的探测面，使之有充足的余量记录所有到达物方的光线，利用该方法可以在探测面上直观地区分出非成像杂散光。

If a particular color or wavelength of light hits the ytterbium when it is in the excited state this light will be a aplined, generating a carbon copy of the original light. In this way a very lower perfect beam can be amplified many times to produce high power beam that are nearly perfect and are therefore very focusable.

如果一种特殊的颜色或光线的波长击中 Yb ，而此时正是激发状态时，这种特殊颜色的光线将被放大产生高能量的近乎完美而且有聚焦能力的光束。

This allows many pump fibers to be coupled to the main laser fiber so allowing more power to be pumped into the system without the use of free space optics, making a completely sealed and thereby highly reliable system, using these methods, almost any number of high lifetime diodes, each producing less than 10w of low quality diode light, can efficiently coupled into a fiber laser to produce hundreds of Watts of near perfect, focusable fiber laser light.

为产生更多的能量，制成一个完全密封的高可信度的系统，用这种方法几乎可制成任何数量的奈用的二极管，来产生小于10W 的低质量二极管光线，还可能效地附加到纤维激光机上来产生几百瓦的几乎完美的，可聚焦的纤维激光光线。

Based on theories of geometrical optics and electromagnetic wave promulgation, models of three status of aqueous foams transit by light were set up, and the situations of mono- and double- layer unassimilated, assimilated and electric solid infusible materials were investigated for the changes of orientation, path and energy distribution of ray.

基于试验结果，利用几何光学原理和电磁波传播理论，建立了水基泡沫三种状态下的消光模型，通过理论分析和数值模拟，研究了单层界面无吸收、双层界面无吸收、有吸收和含导电性固体不溶物情况下的光线传播规律，从光线传播方向和能量的变化方面，揭示了水基泡沫消光的机理及其对目标探测和甄别的影响。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了