Take high-tension power lines, for example.

以线为例。

Previous attempts to use cardiac muscle power to run pacemakers relied on piezoelectric materials.

之前使用心脏肌肉能量运行起搏的尝试是依赖于材料。

To do all this, though, you need a device called a transducer.

但完成该过程，你不能缺少一台叫做‘式换能'的设备。

" … supplied with current from the Grand Canyon hydro-electric station."

“… … 是由大峡谷水站供应的。”

Eight Sleep sells a so-called smart mattress. Vibration detecting piezo electric sensors are packed into the mattress bedding.

Eight Sleep正在销售一款所谓的智能床垫，内置振动检测传感。

The music is also made with the piezo material.

音乐也是用材料制作的。

Piezoelectric quartz crystals in the sonar's transmitter vibrated when they were subjected to alternating voltage.

声纳发射中的石英晶体在受到时会振动。

And we thought, OK, let's combine it with a piezoelectric material.

我们想，好吧，让我们将它与材料结合起来。

10. The power keeps fusing in your apartment when you turn on high voltage appliances.

10. 当您打开时，您公寓的源一直熔断。

For a simpler example, take a look outside at just about any high voltage power line.

举一个更简单的例子，看看外面的任何源线。

Piezoelectric materials turn mechanical stress, like pressure, sound waves, and other vibrations into electricity and vice versa.

材料将力、声波和其他振动等机械应力转化为能，反之亦然。

Transducers are made from arrays of tiny piezoelectric structures that convert electrical signals into ultrasound waves by vibrating at an appropriate frequency.

式换能是由具有‘'效应的一系列敏感元件机构组成。敏感元件机构通过‘定频'震荡将信号转换成超声波。

Clapping your hands send sound vibrations through the air and causes the piezo element to bend back and forth.

拍手会通过空气发出声音振动，并导致元件来回弯曲。

The power keeps fusing whenever I turn on a high-voltage appliance, like the kettle or my hairdryer.

每当我打开（例如水壶或吹风机）时， 源就会不断熔断。

Dr Zhang and Dr Yang speculated that they could improve matters by arranging for their piezoelectric composites to be more dramatically deformed.

张浩和杨斌推测，他们可以通过让复合材料更加变形的方法改善这个问题。

To make a transducer by painstakingly micro-machining a brittle block of ceramic material can take many hours of work, though.

式换能需要用到陶瓷材料，而精密地加工一块精细的陶瓷材料就要耗费几个小时的工作时间。

But some crystalline materials don't possess a center of symmetry making them candidates for piezoelectricity.

但是一些晶体材料不具有对称中心，这使它们成为性的候选者。

Let's look at quartz, a piezoelectric material made of silicon and oxygen.

让我们看看石英，一种由硅和氧制成的材料。

In most non-piezoelectric crystalline materials, the atoms in their unit cells are distributed symmetrically around a central point.

在大多数非晶体材料中，其晶胞中的原子围绕中心点对称分布。

Piezoelectric materials can have different structures.

材料可以有不同的结构。