easy to experiment and find out
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送交者: cktears 于 2010-02-04, 19:16:23:
回答: 防里面向外辐射需要接地，防外面向里面辐射不用接地？ 由 dile 于 2010-02-04, 12:56:29:
leave your cellphone in a metal box. you will find your cellphone will not work whether the box is grounded or not.
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