It is promised that the lobe pattern and impedance of a antenna are kept common in a wider frequency field(as bandwidth is 10 or more).是什么意思_It is promised that the lobe pattern and impedance of a antenna are kept common in a wider frequency field(as bandwidth is 10 or more).在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句