This is because the electromagnetic signal emitted by the isolator is completely in the range of the mobile phone frequency set by the state.It can only block off the communication of mobile phones.是什么意思_This is because the electromagnetic signal emitted by the isolator is completely in the range of the mobile phone frequency set by the state.It can only block off the communication of mobile phones.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句