radio jet射电喷流radion.收音机；无线电v.用无线电通讯radioisotope penogram核素显像技术Radionuclide imageimg放射性核素显像radio-wave sounding无线电波探测radio relay equipment接力机radiofrequency region射频范围radio circuit diagram无线电电路图radiography of fistul瘘管造影术radiometric titration放射滴定radio-frequency gap射频放电器radio-range monitor[电] 无线电射程监测器