Gamma rays are a type of electromagnetic radiation that has a shorter wavelength and higher energy than X-rays.
N-PLURAL
Gamma rays are a type of electromagnetic radiation that has a shorter wavelength and higher energy than X-rays.
N-PLURAL
Collins COBUILD Advanced Learner's English Dictionary. Английский словарь Коллинз COBUILD для изучающих язык на продвинутом уровне. 2006