送交者: year2226 于 2010-02-04, 17:40:30:

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:

• That depends on the frequence of the EM wave. (无内容) - cktears (0 bytes) 2010-02-04, 19:17:08 (411361)

加跟贴