(~s)
A ~ is a machine that spins mixtures of different substances around very quickly so that they separate by centrifugal force.
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(~s)
A ~ is a machine that spins mixtures of different substances around very quickly so that they separate by centrifugal force.
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Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012