LED lights are electronic lights used all over the world, which use energy very effectively.

LED灯是全世界都在使用的电子灯，它能非常有效地利用能源。

" Spotlight" is easy to understand. Spotlights are the bright lights used in a theatrical production.

“spotlight”很好理解，指的是戏剧作品中用到的明亮的灯光。

It's more like 18 million, because that's the number of lights used to illuminate China's Labor Day celebration.

这更像是1800万，因为这是用来照亮中国劳动节庆祝的灯号。

Neon and fluorescent lights use electricity to excite atoms that do the glowing, instead of heating up a thin wire.

霓虹灯和荧光灯用电来激发发光的原子，而不是加热一根细线。

A concave mirror creates an image from this light using a design pioneered in the 17th century, by Sir Isaac Newton.

早在17世纪，艾萨克.牛顿就开创性的利用这个光，让凹透镜产生了一个图像。

You can’t describe things like light using the concepts you’re used to, that work on a larger scale.

你不能用你习惯的概念来描述像光这样的东西，它适用于更大的范围。

You can't describe things like light using the concepts you're used to, that work on a larger scale.

您无法使用您习惯的概念来描述诸如光之类的东西，这些概念适用于较大的尺寸。

However, urban development, artificial light used at the beach, outdoor advertising billboards and fishing lights have worsened the light pollution in the area.

然而，城市发展、海滩使用的人造光、户外广告广告牌和钓鱼灯加剧了该地区的光污染。

Think of a big light bulb and a tiny light bulb on the same wire of holiday lights, using the same current.

想想节日灯的同一根电线上的一个大灯泡和一个小灯泡，使用相同的电流。

Next up is a 3D night light, using a wooden base, high permeability acrylic plate to make the picture clearer, soft lighting.

接下来是3D夜灯，采用木质底座、高透亚克力板，使画面更加清晰，灯光柔和。

Here you can see the robot steering itself toward a light using a camera mounted at its tip to sense the light's location.

在这里，您可以看到机器人使用安装在其尖端的摄像头来感知灯的位置，从而将自己转向灯。

The Urbix method is a low-energy process clean enough to be carried out on a site zoned for light industrial use, says Mr Cuevas.

Cuevas 先生说，Urbix 方法是一种低能耗工艺，足够清洁，可以在划为轻工业用途的场地上进行。

With lighter use, I can get through a day and a half on a single charge, and a full day of heavy use is no problem.

使用较轻的情况下，一次充电可以使用一天半，重度使用一整天也没有问题。

The team said that because of the extreme distance involved, the light used to make the observation likely began traveling when the universe was less than 1.5 billion years old.

该研究小组表示，由于涉及的距离极远，用于进行观测的光很可能在宇宙年龄不到15亿年的时候就开始传播了。

First, we’re bumping into limits on how fine we can make features on a photomask and it’s resultant wafer due to the wavelengths of light used in photolithography.

首先，由于光刻中使用的光的波长，我们在光掩模和最终晶圆上制作特征的精细程度遇到了限制。