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

为使旧建筑更节能，木材很好的绝缘体。

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

它们彼此之间互不连接，因此成为了绝缘体。

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

事实证明，杜海底电缆的绝佳绝缘体。

And since asphalt is an insulator, it traps that heat over the course of the day.

因为沥青绝缘，昼捕热。

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

大部分这种材料都一个绝缘体，但其表面仍可带一支电流。

The Earth's crust is an incredible insulator, and it keeps this massive, inexhaustible heat source beneath us invisible.

地壳的隔热效果很，能让这个巨大、用之不竭的地底热能来源不被注意到。

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不可能的。

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

好吧 开始上课 请举手我 在座的哪位对拓扑绝缘体的概念比较熟悉？

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

而在橡一类的绝缘体中，电子实际上根本无法流动。

Someone douses the fire, and she lowers the pot into an insulator they made out of clay and straw.

有人把火弄熄，她把锅子放到他们自己做的保温器里头，用泥土和草做成的。

They're also good insulators for heat and electricity.

它们也热和电的良好绝缘体。

Now, while chemically pure water is an insulator, most water is impure.

现在， 虽然化学纯水绝缘体，但大多数水都不纯的。

Diamonds are electrical insulators, not conductors.

钻石电绝缘体， 而不导体。

Well, you need a better insulator than just air.

嗯，你需要一个比空气更好的绝缘体。

The  air is the insulator doing the job of keeping electricity constrained within the conductors.

空气绝缘体，负责将电流限制在导体内。

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

我们经营相当数量的瓷砖，以及电器用品的绝缘体。但厨房用具和餐具本公司主要系列产品。

Her nose looked like a porcelain insulator.

她的鼻子看起来像瓷绝缘体。

One example is called a topological insulator.

一个例子叫做拓扑绝缘体。

Static build-up is most likely to occur when one of the materials involved is an insulator.

当涉及的材料之一绝缘体时，最有可能发生静电积聚。

You might notice small devices hanging near the insulators at each pole.

您可能会注意到每根杆的绝缘体附近都悬挂着小型设备。