You direct this beam of light onto an object, your computer work, for example.

你把束光照射到一个物体上，例如你的计算机工作。

What the birds see is a whole beam of light coming out so they see a big green stick.

鸟儿们看到的是一束完整的光线射出，所以他们看到一根大的绿色的棍子。

It's like this white beam of light.

就像束白光一样。

So as you press this down, it breaks that beam of light.

所以当你按下它时，它会切断那束光。

How does a beam of light do that?

一束光是怎么做到的呢？

Beams of light or circles of light are emitted from these devices and the reflected time of flight of light lets them know where my feet are on the floor.

些装置发出的光束或光圈，并且光的反射时间能反映出我的脚在地板上的位置。

When he focused the beam of light onto the stick, the stick burst into flames.

当他把光束聚焦在棍子上时，棍子突然烧了起来。

Sensors at road level shoot beams of light across the road, to a reflector.

路面上的感受器发射光束，到达马路对面的反射镜。

And the sun is your energy and the laser beam of light is your focus.

太阳是你的能量，激光束就是你的专注度。

An odd quirk of this system is that when two beams of light at the exact same ratio enter the eye, the signal that is sent off to the brain is the same.

个系统的一个奇怪之处在于，当两束光以完全相同的比例进入眼睛时，发送到大脑的信号是相同的。

The test basically projects a couple of beams of light into your eye, and we're able to reverse calculate the power you need to see clearly.

项测试是将几束光投射到你的眼睛里，我们能够反向计算出你需要看清楚的能量。

They waited in the darkness, listening to the footsteps running up and down, beams of light flying along the street from the Death Eaters' searching wands.

他们在黑暗中静静地等着。街上传来忙乱的脚步声，食死徒们的魔杖发出的光束四处挥舞着。

Those ancient beams of light are messengers from the distant past, and they carry with them a story, the story of the origin of the universe.

些古老的星光都是来自遥远过去的信使，而它们携载着的故事正是宇宙起源的点点滴滴。

But when he reached the part where the golden beam of light had connected his and Voldemort's wands, he found his throat obstructed.

然而，当他讲到那道金光连接他的魔杖和伏地魔的魔杖时，他觉得嗓子哽咽了。

The ones we're looking at are spinning hundreds of times per second and they have these beams of light, most often radio light.

我们正在观测的脉冲星每秒旋转数百次。它们会发出光束，其中最常见的是射电光束。

When she once again lifted the lid and peered in, a warm beam of light rose out and fluttered away.

当她再次打开盖子往里看的时候，一束温暖的光线升起并振翅飞走。

At the age of sixteen, Einstein asked himself what it would be to ride a beam of light.

爱因斯坦16岁那年问自己，如果骑在一束光上将是什么样子。

But if that's true, if you shine a beam of light... - Do you want a laser pointer?

但如果是真的，如果你射出一束光...... — 你要激光笔吗？

So once it starts to depress, it actually cuts off that beam of light, which immediately sends a signal from the keyboard to your computer that that key has been hit.

一旦你按了下去，它实际上切断了光束，并立即从键盘发送一个信号到你的计算机，表示该键已被击中。

Beams of light shone from it.

袈裟瞬间闪闪发光。