A light-year is about 6 trillion miles, the distance light travels in a year.
一光年大约6百亿亿英里，即光行走一年的距离。
Cross River Bridge construction site on the distance light flashes, the city has been everywhere impetuous breath.
远处跨江大桥工地上灯光闪烁，这个城市浮躁的气息已经无处不在。
The universe looks roughly the same in all directions-even parts that seem to be separated by more than the distance light has traveled since the Big Bang.
我们的宇宙从所有方向看，大致是相同的，甚至包括比自大爆炸后光传播最远的距离更远的分离区域。
Because some brighten or dim significantly in less than a day, their energy-producing regions must be no larger than the distance light can travel in a day - about the size of our solar system.
由于某些类星体在不到一天的时间里明显增亮或变暗，其产能区应该不会比光一天行进的距离长，即约为我们太阳系的大小。
Light-line is one of the companies that will most benefit if new long-distance fiber-optic telecommunications networks are constructed.
如果建设新的长途光纤通信网络，Light-line将是最大的受益公司之一。
This law is known to hold true for galaxies at a distance of at least several billion light years.
这个定律被普遍认为同样适用于至少数十亿光年之远的星系。
When you analyze this light, you can figure out their distance from the Earth, and identify what they are made of, determine their chemical composition.
当你分析这些光的时候，你可以计算出它们与地球的距离，并确定它们由什么构成，查明它们的化学成分。
While talking in the darkness, Pinocchio thought he saw a faint light in the distance.
当他们在黑暗中说话的时候，皮诺乔好像看见远处有微弱的灯光。
There was a flash of light in the distance.
远处灯光一闪。
The attractive force decreases with the distance in the same proportion as light, which, we saw a little while ago, decreases in intensity as the square of the distance increases.
引力随距离减少的程度，跟光线随距离减弱有相同的规律，这个规律我们不久前刚刚讲过，即强度的减弱跟距离的平方成正比。
From the return pulse, LOLA determines the time of flight which, accounting for the speed of light, reveals the distance from the spacecraft to the lunar surface.
之后激光高度计将参照光速，计算出反射脉冲的渡越时间，从而获得飞船与月球表面之间的距离。
Also remember that bouncing light-even into a shiny reflector that keeps light directional - adds to the distance it travels.
同样还要注意的是，经过反射的光线其行进的距离也会增加，即使使用光面反光板也一样。
Fear gnaws at you: "I may never make it back to safety." Just as all hope is fading, your frantic eyes see a dim light in the distance.
恐惧侵蚀你心：“我可能死于此地”就在希望褪去之际，你狂乱的眼睛看见一道远方暗光。
Telescopes cross distance; microscopes, size; other tools detect sounds beyond hearing or light beyond sight.
望远镜跨越距离；显微镜消弭尺寸的限制；还有其他一些工具能够探测到视野之外的声音或光线。
A short distance, to be sure, but at the time it felt like a light year.
确实只有很短的距离，但那时我却感到距离了一光年似的。
Scientists have come up with a much more accurate way of measuring distance - wavelengths and light speed.
但是科学家们已经提出了更精确的测量距离的方法了-波长和光的速度。
At this distance the optical light from stars is shifted, or stretched, to infrared wavelengths that can only be observed in outer space by Spitzer.
在这个距离，恒星的光源光被折射，或拉伸成红外波长，在外层空间只有斯皮策太空望远镜才能观测到。
To the astonishment of the entire world, the neutrinos clocked in 60 nanoseconds sooner than a light beam traveling the same distance would have done.
他们记录到的中微子的行驶时间要比光线行驶相同距离提早了60纳秒，从而使整个世界为之震惊。
The space-time ripples cause the distance measured by a light beam to change as the gravitational wave passes by, and the amount of light falling on the photodetector to vary.
时空涟漪使得用光束测量的距离像引力波通过那样变化，同时使得落在光电探测器上的光量发生变化。
One can try focusing on point light sources at a similar distance to the subject of interest.
你可以尝试对焦在与中心物体距离相近的任何一个光源上。
At that distance, this canvas would be about 15 light-years across.
在这个距离内，这幅画布大概有15光年宽了。
The pattern and colors actually help distort the fish's outline when seen in natural light at a distance through water, helping the animal disappear from the view of potential predators.
其实，若是在自然光下、于水中一段距离外，这种图案和色彩有助于扭曲鱼的轮廓，让它在潜在掠食者的视线中消失。
Because the universe has a finite age (~ 13.7 billion years) we can only see a finite distance out into space: ~ 13.7 billion light years.
由于宇宙有一个有限的年龄(约等于13.7亿年)，我们只能看到有限的空间：半径约等于13.7亿光年。
The flashing light dimmed into the distance as the police car rolled to a halt, much to the amazement of its occupants.
警车抛锚了，闪烁的灯光也远去了。这让警车里的人惊奇不已。
In the far distance we had some HMI light units backlighting the mist and the sky; that would outline the shape of the forest.
在道路远端，我们放了一些HM I灯打背景的烟雾和天空，勾勒出森林的轮廓。
In the distance, a fuzzy beam of light appeared, followed by the roar of a horn.
远处出现了一束模糊的光线，随后传来轰鸣声。
At the estimated distance of NGC 6188, the picture spans about 200 light-years.
以NGC 6188的距离推测，这张图片宽约200光年。
At the estimated distance of NGC 6188, the picture spans about 200 light-years.
以NGC 6188的距离推测，这张图片宽约200光年。
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