黑科技：动动手指，就能为手机充电？
<p>出门必备充电宝的日子可能就要结束了！美国密歇根州立大学研究人员设计出一种低能耗纳米发电装置，能够把人滑动、按压手机屏幕的力转化为电能。实验室中，他们成功地用这种装置驱动了一块<span word="LCD">LCD</span>触摸屏、一组<span word="LED">LED</span>灯泡以及一个折叠键盘。</p><p><span word="The">The</span> <span word="days">days</span> <span word="of">of</span> <span word="having">having</span> <span word="to">to</span> <span word="carry">carry</span> <span word="a">a</span> <span word="phone">phone</span> <span word="charger">charger</span> <span word="everywhere">everywhere</span> <span word="could">could</span> <span word="soon">soon</span> <span word="be">be</span> <span word="over">over</span>.</p><p>随身携带手机充电器的日子可能即将过去。</p><p><span word="Michigan">Michigan</span> <span word="researchers">researchers</span> <span word="have">have</span> <span word="revealed">revealed</span> <span word="a">a</span> <span word="major">major</span> <span word="breakthrough">breakthrough</span> <span word="in">in</span> <span word="harvesting">harvesting</span> <span word="energy">energy</span> <span word="from">from</span> <span word="human">human</span> <span word="motion">motion</span>.</p><p>密歇根的研究人员取得了一项重大突破, 可从人体动作中收集能量。</p>
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