名詞 air gas:

1. a gas made of carbon monoxide and hydrogen and nitrogen; made by passing air over hot coke
   同義詞：producer gas

1. A pipe, tube, or channel for conveying hot air, gas, steam, or smoke, as from a furnace or fireplace to a chimney.
   通氣管一種用于運(yùn)送熱氣、可燃?xì)?、水流或煙的?dǎo)管、軟管或管道，如從火爐或爐子傳送到煙囪
2. A forcible stream of air, gas, or steam from an opening, especially one in a blast furnace to aid combustion.
   吹風(fēng)，送風(fēng)從出口，尤其是從助燃鼓風(fēng)爐的出口出來的空氣，其他氣體或蒸汽氣流