| 摘要 |
The double-walled container relates to household devices, and more specifically to devices for storing and heating foodstuffs. The container makes it possible to maintain the temperature of the object disposed therein and, if necessary, change the temperature by heating from outside. The double-walled container (1) comprises a bellows (2) with a heat carrier, which is attached to the outer wall such as to leave a gap relative to the inner wall. When the heat carrier is heated, the bellows expands and makes contact with the outer and inner walls of the container, transmitting heat.
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