radio telescope

apparatus for finding stars, tracking spacecraft, etc by means of radio waves from outer space 射电望远镜（藉来自外层空间的无线电波发现星体、 追踪宇宙飞船等）.

radar trap (also speed trap), radial, radially, radiance, radiant, radiantly, radiate, radiation, radiation sickness, radiator, radical, radicalism, radically, radicle, radii, radio, radio astronomer, radio astronomy, radio car, radio cab, radio frequency, radio transmitter, radio-, radio-astronomer, radio-carbon, radio-controlled, radio-frequency, radio-therapist, radio-therapy, radioactive, radioactivity, radiogram, radiograph, radiographer, radiography, radioisotope, radiologist, radiology, radish, radium, radius,