And for retrofitting older buildings to be more energy effcient, wood is a good insulator.

为使旧建筑更节能，木材是很好绝缘体。

Each insulator is about six feet and it'll probably cover two doors, so for just a couple bucks, you can take care of all your entryways.

每条绝缘体大约有六英尺长，大概可以用到两个门，所以只要几块美元，就可以处理你入口通道啦。

Since these are not connected to each other, the result is an insulator.

它们彼此之连接，因此成为了绝缘体。

And in an insulator, like rubber, electrons can't really flow at all.

而在橡胶一类绝缘体中，电子实际上根本无法流动。

President Trump, I think, is an equal opportunity insulter.

我认为，特朗普总统是一个机会均等绝缘体。

It also turned out that gutta percha was a great insulator for undersea cables.

事实证明，杜仲胶是海底电缆绝佳绝缘体。

Powdery or soft, the substance provides an excellent source of insulation.

粉末状或是柔软这种物质能成为绝好绝缘体。

Your body creates its own warm bubble of air just above the skin thanks to conduction.

由于传导，你身体会在皮肤上产生热气绝缘体。

Anthony Remijan, of America's National Radio Astronomy Observatory, who is one of the astronomers putting ALMA through its paces, is studying the formation of methyl formate, a compound widely used on Earth in applications from insulation to insecticides.

美国国家射电天文台Anthony Remijan是将ALMA引入这个天文学家中一员。他正在研究甲酸甲酯形成过程。从绝缘体到杀虫剂，可以说地球上到处都是甲酸甲酯。

However, if in our experience we are not continuously connected to Him or if we allow insulation to build up between us and Him, the transmission will cease… .

但如果我们在经历中没有一直联于祂，或是容让绝缘体在我们与祂之树立起来，这种传输就会停止。

They found that it binds to chromatin, the compact structure that allows long molecules of DNA to ball up and fit into a tiny cell.

研究人员认为，Dsup作为一种染色质绝缘体，可以保护DNA免受羟基自由基攻击。

The high-definition zoom lens mounted on the device captured images of key grid components, such as insulators, and transmitted them in real-time to a platform.

安装在设备上高清变焦镜头捕捉绝缘体等关键电网组件图像，并将其实时传输到平台。

We do a fair amount in tiles and in insulators for electrica appliances. But kitchenware and tableware are our mainlines.

我们经营相当数量瓷砖，以及电器用品绝缘体。但是厨房用具和餐具是本公司主要系列产品。

Myelin acts like insulation, just like on an electrical wire that helps the impulse travel more quickly.

髓鞘就像绝缘体，就像电线一样，帮助脉冲更快地传播。

All right, let's begin. Show of hands, who here is familiar with the concept of topological insulators?

好吧 开始上课 请举手告诉我 在座哪位对拓扑绝缘体概念比较熟悉？

Most of the material is an insulator, but its surface can carry an electric current.

大部分这种材料都是一个绝缘体，但其表面仍可带一支电流。

At a certain point these bridges transform the developing network from an insulator into a conductor, by letting electrons hop from island to island.

在某一时刻，这些桥梁让电子从一个岛屿来到另一个岛屿，将发展中网络从绝缘体转变为导体。

A topological insulator acts like both at the same time, which we used to think was impossible!

一个拓扑绝缘体就像两个同时起作用，而这在过去被我们认为是可能。

Nowadays, scientists are working to develop topological insulators, and some think they could be as important for future technologies as semiconductors are today.

当前，科学家们正在致力于研发拓扑绝缘体。其中有些人认为拓扑绝缘体对于未来技术就像今天半导体一样重要。

Aerogels are great for insulation, because the air inside doesn't transfer heat very well.

气凝胶是绝佳绝缘体，因为其内部气体太能导热。