光线

The floor absorbs all the colors in the incident ray except blue, and reflects it.

地板把除蓝色以外的所有颜色的光线吸收了，只反射蓝色光线。

And the stimulus it affords to the sense, and a sort of infinitude which it hath, like space and time, make all matter gay.

光线不但激活了感官，而且光线好似空间和时间，有着能把一切都覆盖的性质，所以任何东西只要在光明下都是赏心悦目的。

So artistic charm of oil painting has direct connection with use and expression of light and as an important plastic element, light has noteworthy effects on style and form of oil painting.

因此，油画的艺术魅力与光线的运用和表现有着直接的联系。光线作为重要的造型元素对油画的表现风格和形式有着不容忽视的影响。

Unlike rendering solid objects with well-defined boundaries, volumetric shading determines how light passes through an object, not just how it bounces off the object.

和渲染固态实心的物体不同的是，体积渲染没有一个清晰明确的渲染边界。体积材质节点测算光线是如何穿过物体起作用而不是测算光线在物体表面的反射。

Able to look past the light changed to look very far from the light, put on 100 days, when reading and writing literacy mirror like looking at 30 meters or even more distant mountains, as a reading and writing every day, day by day of the telescope to see the book is like watching an hour one hour away, to see the day the book is like watching a day in the distance, so that read and write every day, every day, telescopic, younger children, the eye still growing, better recovery capabilities, long time of the telescope, to enhance visual acuity, and myopia on the recovery.

能够把看近的光线改变成看远的光线，戴上百天读写镜在读写的时候就像在看30米外甚至更远处的山一样，一天天的读写，一天天的望远，看一小时书就像看一小时的远，看一天书就像看一天的远处，这样天天读写，天天望远，年龄小的孩子，眼球还在发育，康复能力比较好，长时间的望远，视力就提高了，近视就康复了。

The experimental method was described for measuring the chromaticity of the light source of electroluminescence lines by means of a grating monochromator .

基于色度学的基本理论和色度的测量方法，提出了用平面光栅单色仪测量场致发光线光源色度的方法，研究了场致发光线的结构和发光原理

Considering the effect of the change of ambient light on the navigation system of the car, an image processing algorithm with adaptive dynamic threshold is proposed to track the change of ambient light and provide an anti-jamming way for the navigation system with short operating time required.

考虑到环境光线的变化会影响导航效果，提出了一种自适应动态阈值图像处理算法；该算法运算量小，能跟踪环境光线的变化。

This paper improves and perfects the numerical solution of the ray equation .

改进和完善了已有的光线方程的数值解法，使得该算法更具可操作性，并且给出了两种变折射率光线追迹的图形。

The traditional algorithm of Volume Rendering is Ray-Casting, not a proper algorithm for the large 3-D seismic data, referring some improved method and considering the characteristic of seismic data, a new fast Ray-Casting algorithm of oriented image space and negative-view transform was brought forward. As a result, this algorithm excels the traditional obviously by speed with image quality in experiment.

体绘制的传统算法是光线投射法，由于地震数据量大而绘制速度太慢，本文在借鉴一些改进算法的基础上，结合地震数据的特点，提出了一种基于图像空间的逆视变换的加速光线投射算法，实验结果表明该算法在保证相同图像效果的同时，具有明显的速度优势。

Most point-and-shoot cameras have a simple exposure override facility, normally allowing you to overexpose or underexpose your picture. So if the subject is predominantly dark, experiment by overexposing to compensate. If the subject is predominantly light, then underexposure is the way to go. Try taking a test picture, look at it on the screen on the back of your camera, check the histogram, and adjust your exposure compensation. Don't be afraid to shoot four or five versions, as the LCD screen is not always accurate. You can delete the bad pictures later.

大多自动数码相机都具有曝光优先功能，一般都允许你在拍照时过度曝光或曝光不足，如果被拍摄物体整体光线比较强，可以减弱曝光强度，如果被拍摄物体整体光线比较弱，可以选择过度曝光，试着多拍摄几张照片，通过相机背部的液晶屏观察柱状图，调节曝光补偿等级，因为液晶屏的显示效果不很精确，别嫌麻烦，多拍几张照片，之后，对于效果不理想的照片可以删除。

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