| 摘要 |
It is constituted by the combination of a standardised support 1, the axial orifice 2 of which includes an aerodynamic accelerator 3, 5. It is intended to allow the combustion of unburnt elements while at the same time increasing the heat yield (calorific output) of the inflammable gases and accelerating the flow of the gases as well as the draught. <IMAGE>
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