短語詞組短語noncoherent spread -spectrum system 非相干擴頻測控系統(tǒng)spread -spectrum TT&C system 擴頻測控體制hybrid spread -spectrum communication system 混合擴頻通信系統(tǒng)frequency -hopping spread-spectrum system 跳頻擴頻系統(tǒng)non -spread spectrum satellite communication system 非擴頻衛(wèi)星通信系統(tǒng)two -dimension spread spectrum system 二維擴展頻譜系統(tǒng) 返回 spread-spectrum system