摘要
试想一下，一个永远不需要充电的自我供电手机，因为它能把用户通话所产生的声波转换成维持手机运行所需的能量。感谢德克萨斯A＆M大学阿蒂·麦克菲林化工系的塔希尔·凯金教授最新的研究成果，这种手机并不像表面看起来那么遥不可及。
Imagine a self that never needs to powering cell phone be charged because it converts sound waves produced by the user into the energy it needs to keep running. It＇s not as far-fetched as it may seem thanks to the recent work of Tahir Cagin, a professor in the Artie McFerrin Department of Chemical Engineering at Texas AlUM University.
