draught-furnace 通风炉 ; 畦

forced-draught furnace [动力] 压力通风炉

draft furnace draught-furnace 通风炉

furnace draught 炉子抽力 ; 窑炉抽力

Furnace draught loss 炉膛风压失

up draught drying furnace 鼓风干燥炉

furnace roof draught 炉顶压力

furnace carbon black draught control 高炉通风控制