radio jet射电喷流radion.收音机；无线电v.用无线电通讯Radionuclides imaging放射性核素显像radiodiagnostic agent放射性诊断试剂Radio Frequency Chart射频图radio frequency spark射频火花radiotelegram service无线电报业务radiographic negative[医] X线底片radioisotope labeling放射性核素标记radiometric magnitude辐射星等radio-range station无线电测距站radioisotopy detector放射性同位素检测器