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用WiFi信号发电！MIT新研究改写充电方式
source link: https://tech.sina.com.cn/d/i/2019-01-31/doc-ihrfqzka2577140.shtml
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来源：环球科学WiFi在我们身边无处不在，美国和西班牙的科学家没有放过这看似不起眼、但范围广泛的射频信号。他们采用只有几个原子厚的二维半导体制成了新型的整流天线，它可以捕获WiFi信号，并将其转化为电能，为电子设备提供电力，这使得未来WiF
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