A sensor channels the light signal along an optical fibre.
传感器沿光导纤维输送光信号。
He found the blue light, and made her a signal to draw him up again.
他找到了那盏蓝灯，给了她一个信号，让她把他拉上来。
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。
However, the scattered light is extremely weak and therefore yields a very low signal.
然而，这种散射光极其微弱，因此只产生一个非常弱的信号。
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。
Pulses of light can bleed together, adding noise and degrading the signal.
脉冲光会跟着一起散开，并会渗入噪音并使信号损失。
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。
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。
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。
Turn left at the signal light.
在信号灯处左转。
When can not guarantee that request, are given voice, the alarm signal light.
当不能保证要求时，给出声音、光的报警信号。
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)。
Stop when the signal light is red.
信号灯是红色时就停下来。
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。
The paper discusses the design and application of a new kind of traffic signal light group of fieldbus.
讨论一种新型的总线型智能交通信号灯组的设计与实现技术。
The relations between the gain and signal light intensity and pump light intensity are analyzed.
就增益随信号光及泵浦光光强的变化作了分析。
The relations between the gain and signal light intensity and pump light intensity are analyzed.
就增益随信号光及泵浦光光强的变化作了分析。
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