( particle accelerators)
A particle accelerator is a machine used for research in nuclear physics which can make particles that are smaller than atoms move very fast.
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( particle accelerators)
A particle accelerator is a machine used for research in nuclear physics which can make particles that are smaller than atoms move very fast.
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Collins COBUILD Advanced Learner's English Dictionary. Английский словарь Коллинз COBUILD для изучающих язык на продвинутом уровне. 2006