Bats have an engineering problem: how to find their way and find their prey in the absence of light.
蝙蝠们遇到了一个技术上的难题：如何在没有光线的条件下认路和捕食。
What starts as an everyday squash turns into a lantern of light.
一个平平常常的南瓜变成了一个充满光亮的灯笼。
A sensor channels the light signal along an optical fibre.
传感器沿光导纤维输送光信号。
The frame of an airship is made of light but strong metal.
飞船的框架是用轻而坚固的金属制成的。
A joke, a compliment, an engaging discussion about the latest film or book – these things add a little light to the lives of those around you.
一个笑话、一场赞美、一场关于最新电影或书籍的热烈讨论——这些东西在你周围的这些生命上增添一丝光亮。
Based on discrete diffraction light, an algorithm of holographic grating bandwidth compression is proposed.
提出一种基于离散衍射光的全息光栅的带宽压缩算法。
Finding the right book at the right time can light an emotional spark within us that motivates us to read more, understand more, and read joyfully.
在恰当的时间，阅读一本好书可以点燃思想的火花，让我们更加博闻强识，享受阅读。
In this, he synthesized all his tricks from Drury Lane: mechanical motions, sound, light, other special effects to create, if you will, an early multimedia production.
在这部作品中，他综合了德鲁里巷中用到的所有技巧——包括机械运动、音效、灯光，以及其他特效，（可以说是）创作了一部早期的多媒体作品。
Obscuring dust lanes, young blue star clusters and reddish star forming regions surround a core of yellowish light from an older population of stars.
遮蔽尘带、年轻的蓝色恒星团和红色调的恒星形成区，包围着核心发出黄色光芒的老年恒星群体。
There is another class of lasers, however, that pulse, oscillating between an "on" stage, where light is produced, and an "off" stage, when the amount of light is dramatically reduced.
脉冲激光器是另一类的激光器，它的脉冲是在“开”与“关”两种状态的振荡之间产生。当激光器处于“开”的状态，产生光，在“关”的状态，光量显著减少。
The ambient reflection only reacts to ambient light; thus, using an omnidirectional light has no effect.
环境反射仅对环境光起作用，因此，使用全向光是无效的。
The light grows more dazzling in an instant.
光此刻显得愈加的耀眼了。
Because nothing can exceed the speed of light, an object cannot flicker faster than the time required for light to travel across the object.
因为没有物体的速度超过光速，所以物体的闪烁速度不可能快于光穿过该物体所用的时间。
The whole fixture must be replaced—light source and luminaire—and this is never an inexpensive proposition.
整个装置——光源和灯具——必须换掉，而这一提议绝不便宜。
The nearest traffic light is an hour and a half away.
最近的交通灯在一个半小时车程以外。
The relationship between the amount of light an incandescent bulb can produce and how long it will last is complicated, to say the least.
退一步说，一盏白炽灯能产生的亮度与其照明寿命之间的关系很复杂。
Flashes of light were followed by an explosion.
阵阵闪光后就是一声爆炸的巨响。
Viewed in this light, guilt is an opportunity.
从这个角度看，内疚是一个机会。
When light from an object such as a machine part strikes the camera, the sensitive materials measure the intensity of light and convert the light rays into a range of numbers.
当一个物体上的光，如机器零件，照射到相机上时，敏感材料就可测量出光的强度，把光线转换为一组数字。
The Wizard of Menlo Park didn't invent the light bulb;he invented an industry.
才气超凡的门罗·帕克并没有发明灯泡，但是他创造了一个产业。
Ambient reflection: The light that is reflected by an ambient light source.
环境反射：由环境光源反射的光线。
Bogs are also flooded with sunshine, so even an inefficient carnivorous plant can photosynthesise enough light to survive.
沼泽也充满阳光，所以即使是低效的食肉植物也能获得足够的光，依靠光合作用生存。
That novel rendering of light seemed an insult to them.
这种前所未有的对光线的描绘对他们来说好似侮辱。
Solar panels generate electricity by converting photons (packets of light energy) into an electric current.
太阳能电池板通过将光子(光的能量包)转化为电流来发电。
The researchers also tested the flies' saliva for enzymes that signal sleepiness and measured the flies' ability to associate a light with an unpleasant stimulus.
研究人员还检测了果蝇唾液中显示困倦程度的酶，还测试了果蝇将光亮与令人不快的刺激联系起来的能力。
He has claimed that by slowing down light by way of an optical illusion, the light can then be bent around an object to 'conceal' it.
他称，通过一种光幻觉可以使光线变得迟缓，从而光线可以弯绕着物体而达到“隐形”效果。
You don't need a light switch or a light bulb or an iPhone app to turn something on or off.
你不需要电灯开关、灯泡或苹果手机应用程序来打开或关闭某些东西。
A thin client is considered light from a coding point of view, but it is also light from an interface functionality standpoint as well.
从编码的角度来看瘦客户端是轻便的，而且从界面功能的角度来看也是轻便的。
For example, if pure white light hits an apple, all colors (wavelengths of light) are absorbed except for red (700-630 nm).
举例来说，纯粹的白光照射苹果，除红色外(波长700- 630纳米)所有的颜色(所有波长)的光都会被吸收。
Even a fifteen-minute burst of light in otherwise sustained darkness can reset an animal's circadian rhythm.
即使是15分钟的猝发光（其它地方是持续的黑暗环境）也可以使动物重新设定生理节奏。
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