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…
| 单词 | θ76094 |
| 释义 | the world > matter > physics > energy or power of doing work > [noun] > source of energy or power > self-contained (2) 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… power package1958 a self-contained source of electrical power; also figurative. |
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