It uses electrical signals from muscles in the upper arm to power motors built into the device.

上臂肌肉发出的信号来驱动内置在装置中的机。

But there is growing interest in the idea of using photoelectric cells to run gadgets as well as power grids-and doing so even when those gadgets are inside buildings.

可科学家们对于光池来驱动装置和网越来越感兴趣了—这些光池即使在室内也能够正常工作。

So as I'm speaking, my sound is getting captured by the tablet, and then it's getting mapped onto a vest that's covered in vibratory motors, just like the motors in your cell phone.

当我讲话时， 我的声音被平板脑捕捉，然后映射到带有震动马达的背心，就像你手机里的驱动装置。