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单词 θ77848
释义
the world > matter > physics > electromagnetic radiation > electricity > electrical engineering > transformer > [noun] > supplying power (1)
power pack1937

a unit for supplying power (also figurative); spec. (a) one for converting an alternating current (from the mains) to a direct current at a different…

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更新时间:2024/9/20 19:59:58