a gas made of carbon monoxide and hydrogen and nitrogen; made by passing air over hot coke
双语例句
A pipe, tube, or channel for conveying hot air, gas, steam, or smoke, as from a furnace or fireplace to a chimney. 通气管一种用于运送热气、可燃气、水流或烟的导管、软管或管道，如从火炉或炉子传送到烟囱
A forcible stream of air, gas, or steam from an opening, especially one in a blast furnace to aid combustion. 吹风，送风从出口，尤其是从助燃鼓风炉的出口出来的空气，其他气体或蒸汽气流
