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.
我们的建模方法是使用光线透射去构建云。
用光线矩阵方法研究了两类带有光阑的谐振腔。
Using ray-matrix method we investigated the resonators containing two kinds of apertures.
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.
注意：如果从一个球型体的内部到外部用光线投射，返回为假。
Note: This function will return false if you cast a ray from inside a sphere to the outside; this in an intended behaviour.
用光线追迹方法描述了空心导管的传输特性，并与透镜导管做了比较。
The transmission characteristic of hollow duct was described by using a ray-tracing method and compared with the lens duct.
事实上，Valiahdi事务所的另一个关键特质是使用光线结合色彩。
In fact, another key characteristic of the Valiahdi office is its use of light combined with colour.
本文用光线追迹法研究了聚合物光纤（POF）端面形状与连接损耗的关系。
The relationship between the shape of the connecting interface of Polymer Optical Fiber (POF) and the connecting loss is studied based on the ray tracing method.
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.
采用光线矢量法设计了两个相互垂直的椭圆截面柱透镜组来准直半导体激光束。
By using the light ray vector method, the elliptic-section cylinder lenses have been designed to collimate the semiconductor laser beam.
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.
用光线和白色表达的形式，使这座建筑在白天转化为光线与周围环境的相互作用。
The forms expressed in a light and white color palette will make the building transform throughout the day in the interplay of light and the surrounding context.
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.
SAD患者可能对光线疗法有效，但是几乎一半的SAD患者对单用光线疗法无反应。
SAD may be effectively treated with light therapy, but nearly half of those with SAD do not respond to light therapy alone.
基于基尔霍夫标量衍射理论，采用光线追迹法设计了连续型平面衍射聚光透镜掩模。
According to Kirchhoff's scalar diffraction theory, with the ray tracing method, a continuous relief mask for diffractive focus lens has been designed.
用光线矩阵方法推导了光纤-自聚焦棒-反射器在共轴耦合情况下的后向耦合系数；
The expression of retroooupling coefficient of fiber-GRIN rod-reflector in coaxial coupling is derived by ray-matrix method.
为了配合舒适睡眠的需要以及装饰设计，客房灯光以辅助照明为主，用光线去实现引导。
In order to cooperate with comfortable sleep needs and decoration design, room lighting is given priority to with auxiliary lighting, using light to guide.
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.
实验研究了带外腔反馈注入的宽接触条形激光器，并用光线传输矩阵分析了该外腔结构。
A broad area laser diode (BALD) with external cavity feedback is experimentally investigated and analyzed by using ray transfer matrices.
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.
但是，眼睛必须去识别周围景象反射的细微光线，所以若要用光线来探路就需要远远比这多的能量了。
However, using light to find one’s own way around requires vastly more energy, since the eyes have to detect the tiny fraction of the light that bounces off each part of the scene.
在本发明的方法中，待测试样被放置在谐振平台的表面上后，随即用光线照射并由此激励所述模式。
The inventive method consists in placing measurable samples on the platform surface and, afterwards, are exposed to light, thereby being excited in modes.
这项了不起的新技术，研究人员成为吸光率调制，使得制造出所用光线波长十分之一粗细的线条成为可能。
Remarkably, the new technique, which the researchers call absorbance modulation, makes it possible to create lines that are only about one-tenth as wide as the wavelength of light used to create them.
本文报导了一种新型低损耗单模光纤的光学耦合器。叙述了应用光线矩阵法和梯度光学理论的设计方法。
The paper reports a novel low loss single mode fiber optic coupler and describes the design procedures employing light matrix method and gradient optics theory.
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.
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.
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