"Lots and lots of companies from overseas, especially from China, selling very cheap products, that users can have in order to recharge their cell phones or small devices, that run on solar energy or wind energy."

VOA: special.2011.01.10

So, this is what goes on in an electrolysis cell, and it works thanks to input energy from a power supply shown here.

所以，这是在一个电化学电池中发生的，它是靠输入的能量工作的,从和这个类似的电源输出的能量。

麻省理工公开课 - 固态化学导论课程节选

This conversion from a mechanical energy into a chemical energy can be nicely visualized when one fills a hair cell with a sensitive die that responds to the calcium ions that influx into the cell.

如果在毛细胞中注入,对钙离子敏感的物质,可以精确地模拟,这一机械能到化学能的转化过程。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选