“draft hood”的概念、定义、翻译、参考文献-科学参考

单词	draft hood
释义	draft hood [`draft ´hu̇d] ^ENGINEERING A device used to facilitate the escape of combustion products from the combustion chamber of an appliance, to prevent a backdraft in the combustion chamber, and to neutralize the effect of stack action of the chinney or gas vent on the efficient operation of the appliance.
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