英语词汇“direct-fired air heater”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	direct-fired air heater
释义	direct-fired air heater direct-fired air heater An air heater in which all the heat of combustion is discharged into the airstream; used in factories, warehouses, etc., to raise the temperature of air, which is brought in from the outside, to room temperature.
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