短語詞組短語spread spectrum packet radio network 擴頻分組無線數(shù)據(jù)網(wǎng)flat -spectrum Naked radio qua Naked 東邊緣Additional Spectrum Radio 附加無線頻譜spread spectrum radio communication 無線擴頻通信spectrum radio quasar 平譜射電類星體;陡譜射電類星體flat spectrum radio quasar 平譜射電類星體Flat Spectrum Radio Quasars 平譜射電類星體Spread Spectrum Radio 展頻無線電;擴頻無線電通信steep -spectrum radio quasar 陡譜射電類星體 返回 spectrum radio