| 摘要 |
A cleaner performs water preheating for a steaming function with power from an external power source, and generates steam with power from a battery provided within the cleaner. The cleaner includes a body, a steam generator provided within the body to generate steam by changing stored water into vapor; an internal power supply unit supplying stored electricity to the steam generator; and an external power supply unit supplying electricity from an external source to the generator.
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