| 摘要 |
The muffle 12 is divided by at least one thermally insulating horizontal partition 18 into at least two separate compartments 16, 17 each equipped with heating means of a different type such as, on the one hand, gas bar (pipe) burners 21, 22 and, on the other hand, an electrical heating element 23, these separate compartments 16, 17 each having a closure door 13, 14. <IMAGE>
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