Analysis shows that the dissolved organic material absorbs enough blue wavelengths from solar light to make the ice appear green.
分析表明，溶解的有机物质吸收了足够的来自太阳光线的蓝色波长，使冰看起来是绿色的。
When you want to know if something is transparent to visible light or not, here is the mystery material and here is visible light.
当你想知道某物对可见光是否透明时，这里是神秘物质，这里是可见光。
A special material on the surface receives UV light from the sun.
表面的一种特殊材料接收来自太阳的紫外线。
Even invisibility now looks almost possible using a new type of material that can direct light to flow around an object as though it were not there.
甚至隐形现在也几乎成为可能：一种新型材料可以引导光线在物体四周流动，使得物体看起来就像不存在一样。
Therefore, when light energy strikes the material, all of the excitons flow to the center of the fiber, where they are concentrated.
这样，当有光照射到材料上并激发激子后，所有激子将流向在纤维管的中心并在此集中。
The lighting wall serves to accentuate the nature of the material and interfuses modern technology and light.
照明墙是用来强调材料的自然性，它也融合了现代技术与灯光。
Aluminium is used as the engineering material for planes and spaceships and it is both light and tough.
因为铝质轻而韧性好，所以被用作制造飞机和宇宙飞船的工程材料。
For it seems as certain as anything can be that no signal-still less any material object-can ever travel faster than light.
看起来非常确定的事情是：没有信号，更不用说物质，可以比光传播的速度快。
So the aim is to manufacture a light material that can be easily woven but is also highly durable and, in order to transmit information, can conduct electricity.
因此现在的目标是要制造出一种轻巧的材料，这种材料要不仅容易编织而且编织出来的物品还要非常耐用，同时为了能够发送信息，它还要可以导电。
That's probably because aragonite has two refractive indices, the extent to which a particular material focuses incoming light.
这可能是由于碳酸钙晶体具有两种折射率——折射率会限定某种物质聚焦入射光线的范围。
"It's a kind of very light carbon nanotube material, " said Lei Zhai, the associate professor of chemistry at the University of Central Florida who led the material's development.
带领材料开发团队的中佛罗里达大学的化学副教授翟磊（音）说：“这是一种非常轻的碳纳米管材料。”
When light waves enter normal materials such as glass, the material alters the electric and magnetic fields in the light, slowing the waves to a particular new speed.
当光波进入普通材料时，如玻璃，这些材料改变了光波中的电磁场，使光波降低到某一新的速度。
One side of the pleat is a transparent material that lets light into the interior, providing plentiful natural daylight, while the other side of the pleat is solid.
褶皱结构一面透明，能提供充足的日光，另外一侧则采用固态材料。
Let's say we have an abundance of the starting material, and not very much light.
比如我们有大量的反应物，但是没有光。
You've probably heard of thin-film solar power, but scientists from Los Alamos and Brookhaven National Laboratories made new light-harvesting material that's actually transparent.
你可能听说过的薄膜太阳能，而是来自布鲁克海文国家实验室和洛斯阿拉莫斯国家实验室的科学家制得了新一种透明的可以吸收光的材料。
Two layers of organic material are sandwiched between two conductors. When a current passes from the cathode to the anode a bright light is produced by the organic material.
两层有机物质层夹在两层导体之间。
Absorbent material usually pulls in ultraviolet and visible light - but this new material also captures infrared and far infrared light.
吸收性材料通常只能吸收紫外线和可见光——但这种新材料还能够吸收红外和远红外光线。
A new nanostructured material that absorbs a broad spectrum of light from any Angle could lead to the most efficient thin-film solar cells ever.
有一种新型纳米结构原材料，因其可吸收来自各个角度的广谱光源，能制成有史以来最有效的薄膜太阳能电池。
For many years researchers have been trying to develop a synthetic material with the same light-scattering properties as an opal, by etching patterns into various materials. That approach has failed.
多年来研究者们一直致力于开发一种与猫眼石一样有散射特性的合成材料，他们在各种各样的材料中蚀刻图案，但是都无功而返。
The material for the couch should be a light velvet if there are dark hardwood floors, and a dark velvet if there are light hardwood floors.
如果地板是深色的，躺椅的面料就应该是浅色的天鹅绒；如果地板是浅色的，面料就应该是深色的天鹅绒。
When the strain is removed, it forms a ripply surface, and the spacing of the ripples affects the colour of the laser light, which varies as the material is stretched.
当这种材料的表面产生张力时，就会产生类波纹状的表面，并且这改变还会影响激光器发出的颜色，并且会随着张力的改变而变色。
To reproduce a 3d image, the researchers bathe the metal-sheathed material in ordinary white light, which contains all wavelengths of visible light (including red, blue, and green).
为了再现出3d图象，研究人员令覆盖有金属层的材料沐浴在白光中，光中包含了可见光的所有波长(包括红、绿、蓝)。
Annotations can be light or heavy, depending on the reader's purpose and the difficulty of the material.
注释也是可多可少，这取决于读者的想法还是材料的困难程度。
Designing invisibility cloaks that can conceal objects from visible light has been more challenging due to the strict material requirements.
由于十分苛刻的材料要求，设计可见光波段的隐身斗篷更具挑战性。
When a specific wavelength of laser light is shone on them these vibrations alter the reflective properties of the material, modulating the light bouncing off them.
当某一特定波长的激光照射声纤时，纤维震动便会改变材料的反射特性，并调节反射的激光。
Further evidence for this can be seen on some crater walls where the darker material appears to have slid downwards, exposing more light-colored material.
关于这一点有更进一步的证据，在一些弹坑壁上有更加黑暗的物质，看起来已经滑到弹坑深处，同时也暴露出了弹坑深处更多的浅色物质。
The three methods of weight reduction for engine, such as optimum design, light material and rational technology, have been presented.
阐述了优化设计、轻型材料、合理工艺等三种减少发动机重量的方法。
The three methods of weight reduction for engine, such as optimum design, light material and rational technology, have been presented.
阐述了优化设计、轻型材料、合理工艺等三种减少发动机重量的方法。
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