N-UNCOUNT 交流电AC is used to refer to an electric current that continually changes direction as it flows. AC is an abbreviation for 'alternating current'. 交流电
N-UNCOUNT [oft NOUN n] alternating current的缩略(交流电)AC is used to refer to an electric current that continually changes direction as it flows. AC is an abbreviation for 'alternating current'. alternating current的缩略(交流电)