radio mes高频手术刀radion.收音机；无线电v.用无线电通讯radio magnetic indicator无线电磁指示器,无线电磁航向指示器radioactivation analysis放射性化分析,放射化分析,放射活化分析,放射性活化分析radio navigation service无线电导航业务radio circuit discipline无线电通信纪律radio astronomy explorer无线电天文探测器radioisotopic power cell原子(能)电池(放射性同位素能源电池)radio-frequency plasma射频等离子体radio-frequency heater射频加热器radio-command guidance无线电指令制导radiographic observation影像学观察