A sensor channels the light signal along an optical fibre.
传感器沿光导纤维输送光信号。
Photoreceptors are cells that respond to light by sending out a chemical signal.
光感受器是通过发出化学信号来对光作出反应的细胞。
The stars being searched are hundreds of light years away, so it takes hundreds of years for their signal to reach us, and a further few hundred years for our reply to reach them.
被搜寻的星星离我们有几百光年远，所以它们的信号传到我们这里需要几百年，而我们的答复传到它们那里又需要几百年。
The light source must therefore be immensely brighter if it is to be used as a headlight to illuminate the path, than if it is to be used as a signal to others.
与用作被人识别的信号相比，如果用作照亮路途的头灯的话，光源必须要明亮很多。
The photodetector then produces a signal defining how the light falling on it changes over time.
随后光电探测器将产生一个信号，定义落在它上面的光量如何随时间变化。
Astronomers detected a bright fluorescent signal, caused by radiation from the nearby star being absorbed by methane and released as light.
天文学家探测到了强荧光信号，该信号来源于甲烷气体吸收附近恒星辐射而发出的光线。
When they detect light, rods and cones pass the visual signal from nerve cell to nerve cell to the visual processing part of the brain.
当光线被这些感受器感受到时，杆状和锥状细胞就把视觉信号从一个神经细胞传到另一个神经细胞，一直传送到大脑负责成像处理的区域。
The camera picks up light and sends the image in the form of an electrical signal, via a processor unit, to the implant.
摄影机拿起并把光图像的形式,通过电子信号处理器单位、植体。
That way, the natural light of the rising sun will send a signal to your brain to slow its production of melatonin and bump up its production of adrenaline, a signal that it's time to wake up.
这样的话，升起的阳光会发送给你的大脑一个是时候该起床的信号，这个信号会减缓褪黑激素的生产，并提高肾上腺素的生产。
Moreover, because the universe is so vast, it takes years for a signal travelling at the speed of light to reach only as far as the next star to our sun.
另外，由于宇宙是如此广袤，信号以光速从最近的一颗恒星传到太阳也要花去数年时间。
Conway flashed a distress signal with his pocket light.
康维拿袖珍手电打出了遇险信号。
The latency cannot be less than the distance the electromagnetic signal has to travel divided by the speed of light.
延迟时间会大于或等于电磁信号传输距离除以光速的比值。
Although previous studies have found that the "group velocity" of light can travel faster than c, the "signal velocity" -the speed at which information travels -cannot.
尽管先前的研究已经证实，光的“群速度”可以超越光速c，而“信号传播速度”——光携带的信息的传播速度——不能超越光速。
Although previous studies have found that the "group velocity" of light can travel faster than c, the "signal velocity" - the speed at which information travels - cannot.
尽管先前的研究已经证实，光的“群速度”可以超越光速c，而“信号传播速度”——光携带的信息的传播速度——不能超越光速。
Its researchers used photodiodes (the technology found in digital cameras) that generate an electrical signal when light strikes them.
该公司的研究人员应用的原理是，当可见光照到光电二极管时可以产生电信号(在数码相机中研发了该项技术)。
"This random jitter would cause noise in the laser light signal," says Hogan.
“这种随机抖动将导致激光信号的噪音。”霍根说。
Since the speed of light is well known, any delay in receiving the satellite's signal can be converted into a distance.
由于光速为人熟知，接收卫星信号时的任何时间迟缓都能折算出距离的远近。
Since the speed of light is well known, any delay in receiving the satellite's signal can be converted into a distance.
由于光速广为人知，接受卫星信号时的任何时间迟缓都能折算出距离的远近。
Since the speed of light is well known, any delay in receiving the satellite`s signal can be converted into a distance.
由于光速广为人知，接受卫星信号时的任何时间迟缓都能折算出距离的远近。
Yet the main warning light flashing from StanChart may be a signal to investment banks, against which it increasingly competes.
渣打银行亮出的警示灯向投资银行传达出一个信号——渣打逐步进军投资业。
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。
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。
Its researchers used photodiodes (the technology found in digital cameras) that generate an electrical signal when light strikes the m.
该公司的研究人员应用的原理是，当可见光照到光电二极管时可以产生电信号(在数码相机中研发了该项技术)。
This paper presents a new traffic equipment which can not only control the traffic signal light, but also display the guidance information to the drivers.
介绍了一种不仅能控制交通红绿灯，而且可以给驾驶员显示交通诱导信息的交通信号控制装置的研制。
The middle waveguide is used to input and output the signal light.
该结构由三个相邻波导组成，中间的波导用于信号光的输入和输出。
This paper deals with the threshold condition of double resonance parametric oscillation when the absorption coefficient of the signal light is different from that of the idling light.
在信号光和闲置光吸收系数不同的情况下对双谐振参量振荡阈值条件进行了分析。
As a result, the influence of signal light and bias current to the power and extinction ratio of converted light is studied in detail.
从而研究了待转换的信号光及偏置电流对转换光功率和消光比的影响。
As a result, the influence of signal light and bias current to the power and extinction ratio of converted light is studied in detail.
从而研究了待转换的信号光及偏置电流对转换光功率和消光比的影响。
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