| 摘要 |
A microwave oven includes a heating chamber into which an object to be heated is placed and heated for a predetermined period of time, a microwave heating unit, a plurality of electrothermal heating units, and a secondary battery charged by a commercial AC power supply and supplying electric power to at least a specific one of the electrothermal heating units. The predetermined heating period of time includes a part in which the specific electrothermal heating unit to which electric power is supplied by the secondary battery is operated simultaneously with the other heating units.
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