它们在夜间捕食，不能利用光线帮忙找到猎物和躲避障碍物。
They hunt at night, and cannot use light to help them find prey and avoid obstacles.
记住，多尝试几种方法，好好利用光线。
Remember to try many different ways to take advantage of the light you are given.
但如果摄影师肯动脑子，利用光线可以拍出神奇的画面。
But if the photographer is thoughtful about how to use the light, magical images can be made.
藻类利用光线和水中的二氧化碳进行光合作用，产生氧气，是系统中的生产者。
The algae use light and carbon dioxide in the water to carry out photosynthesis and produce oxygen, they are the producers.
采用简单的太阳位置算法粗略跟踪太阳光线；再利用光线跟踪传感器精确跟踪。
Simple solar position algorithm is used to trace the sun ray roughly, then the sun ray tracing sensor is adopted to catch the sun ray accurately.
利用光线理论研究光纤弯曲损耗与弯曲半径、纤芯折射中以及包层折射率的关系。
By the theory of ray optics, the bend losses of fiber as function of fiber parameters such as core index, cladding index, core radius and bend radius are set up.
利用光线追踪方法在近轴近似下模拟了高斯光束在不同折射率分布纤维状介质中的传播。
In this paper, it is analyzed the propagation of a Gaussian beam in fiber media with ray tracing under the paraxial approximation.
首先，在三维空间内利用光线追迹法，对刻线不平行而光栅面平行时的压缩光栅对进行研究。
Firstly, the system of parallel grating pair, in which the grating grooves is unparallel while the grating surfaces is parallel, has been studied with the tri-dimensional ray-tracing method.
右图是用多角度成像光谱仪的70度后视相机，利用光线反射增强极地云的外观拍摄的自然色图像。
The right-hand photo is a natural-color image taken with MISR's 70-degree backward viewing camera, which uses the reflection of lightto enhance the polar clouds' appearance.
事实上光线不好的时候拍摄照片就是要这样做——寻找有趣的光线然后思索如何利用光线拍摄出一幅有趣的照片。
Actually, that's what we do in available-light photography: look for the interesting light, then figure out how to use it to make an interesting picture.
这个概念的获取通过移动所有室内墙体充分利用光线，并通过增加透明、反射的玻璃去显露原始的水泥墙而表现出来。
This was obtained by removing all interior walls to optimize light management and by adding transparency and reflection of glass to the exposed original cement walls.
研制出具有法拉第磁光效应的BSO晶体光纤，利用光线分析和琼斯矩阵方法对BSO晶体光纤进行了理论分析和实验验证。
The BSO crystal fiber having magneto-optical Faraday effect is developed. This effect is analysed theoretically by ray-analysis and Jones-matrix method, and proved experimentally.
在引入分辨率损失的概念基础上，利用光线追迹的方法，通过ASAP软件研究了柱面透镜光栅式自由立体显示器的柱镜光栅导致自由立体显示器分辨率下降的原因。
By the method of ray tracking, ASAP software was used to analyze the resolution loss of a LCD autostereoscopic display based on lenticular sheet.
月球探测器上的激光高度计(LOLA)的工作原理为：发射一束激光脉冲，利用光学镜片将其分为五道光线，当光线到达月球表面后会自动反射至激光高度计上。
The lunar Orbiter laser Altimeter (LOLA) works by sending a laser pulse through an optical lense that splits it into five beams that are each scattered back after they strike the lunar surface.
利用光波面和光波法线面的曲线方程，得出了光波面上光轴角和光线轴角的表达式。
The expression of optic axial Angle and ray axial Angle on light wave plane can be obtained by using the curve equations of the wavefront of light wave and normal plane of light wave.
通过对出射光线的控制，利用光学设计软件的自动优化功能，优化出满足条件的球面曲率半径。
Spherical curvature radius was optimized through controlling the exit rays and using the automatic optimization function of optical design software.
然后把每帧的全息条纹按顺序输入液晶空间光线调制器，利用光学系统进行全息重现，以获得具有立体视觉的3D动画效果。
When putting the comuter-generated holography into a LCD Spatial Light Modulator in order to hologram reconstruct according to frames, we can observe animate with third dimension.
然后把每帧的全息条纹按顺序输入液晶空间光线调制器，利用光学系统进行全息重现，以获得具有立体视觉的3D动画效果。
When putting the comuter-generated holography into a LCD Spatial Light Modulator in order to hologram reconstruct according to frames, we can observe animate with third dimension.
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