hot flue

例句：

1. 1. The hot flue is the main source of heat in a furnace.
   热烟道是炉子的主要热源。
2. 2.The hot flue was responsible for the high temperatures inside the building.
   热烟道负责将建筑物内的温度保持在高温状态。
3. 3.The hot flue was designed to prevent smoke from escaping into the atmosphere.
   热烟道的设计是为了防止烟雾逃逸到大气中。