PHPWIND
HELLOCQ
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因为人体所处的电磁环境中50hz信号最强,房间里的电源线是无处不在的电磁辐射天线,人体就是一根接收天线.单只手触碰输入端,感应电压很高,但是如果用另一只手紧握仪器外壳,波幅将显著降低.
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