Swings work by converting potential energy into kinetic energy, then kinetic energy back into potential energy, over and over again.

秋千的晃动是通过势能与动能的不停转换实现的。势能转换成动能，动能再转换成势能，如此循环。

youdao

By embedding energy-storage materials into existing structures, this sheet technology would allow for ubiquitous storage and delivery of electric power and potential integration of clean energy into nearly every corner of our daily lives.

FORBES: Are Paper Batteries A Pipe Dream?

This translates into big market potential for competitive U.S. energy technology companies.

WHITEHOUSE: THE WHITE HOUSE

In conventional electricity generation, roughly one third or so of the energy potential contained in the fuel is converted into electricity.

FORBES: The Case for A Federal Cogeneration Standard