radio nuclide source terms放射性源项
radio activating source carrier放射性源车
radio frequency source射电源
radio interference source无线电干扰源
radio local source射电局部源
radio noise source无线电噪声源
variable radio source变电波源;[天] 变射电源
radio multi-source多重射电源
N(名词) a celestial object, such as a supernova remnant or quasar, that is a source of radio waves 射电源