a unit for converting a power supply, e.g. mains electricity, to a voltage suitable for an electronic circuit
a compact, self-contained, and often portable unit that stores electrical power and supplies it to a machine
| 单词 | power pack |
| 释义 | power packnouna unit for converting a power supply, e.g. mains electricity, to a voltage suitable for an electronic circuit a compact, self-contained, and often portable unit that stores electrical power and supplies it to a machine |
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