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单词 alternating current
释义

WordReference Random House Learner's Dictionary of American English © 2024
ˈal•ter•nat•ing ˈcur•rent, n. [uncountable]
  1. Electricityan electric current that reverses direction at regular periods of time.Abbr.: AC Compare direct current.

WordReference Random House Unabridged Dictionary of American English © 2024
alternating current, 
  1. Electricityan electric current that reverses direction at regular intervals, having a magnitude that varies continuously in sinusoidal manner. Abbr.: ac Cf. direct current.
  • 1830–40

Collins Concise English Dictionary © HarperCollins Publishers::
alternating current n
  1. a continuous electric current that periodically reverses direction, usually sinusoidally
    Abbreviation: AC
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