(~s)
An ~ is an electric current that continually changes direction as it flows. The abbreviation AC is also used.
N-VAR
(~s)
An ~ is an electric current that continually changes direction as it flows. The abbreviation AC is also used.
N-VAR
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012