短语词组短语Ultra -broadband via Satellite 卫星超宽带研究报告ultra -broadband and very-broadband seismometer 超宽频带与甚宽频带地震计miniaturized ultra -broadband antenna 小型化超宽带天线Broadband Ultra -Short Pulse Laser 宽频带超短脉冲激光 返回 ultra-broadband