In those days new scientific discoveries such as electricity seemed to open paths into the area of miracles.

VOA: special.2009.09.26

There are many kinds of work. There's electrical work, take the motor, you plug it into the wall, electricity makes the fan go around, that's electrical work. There's magnetic work.

我们复习一下大一,学过的功的概念：,物体在力的作用下，运动了一段距离。

麻省理工公开课 - 热力学与动力学课程节选

"This is the world's first commercially available pedal generator, allowing to convert your human power into usable electricity.

VOA: standard.2010.02.24

Second,he says, Lithuania is taking a step forward into the electricity market that he adds,will change the planned system of energy into a market based system.

VOA: standard.2010.01.01

A new way of making solar cells promises a cheaper way to generate electricity from the sun and new ways to integrate solar power into other products.

VOA: standard.2010.02.19