炉腰

例句：

1. 1.The chef carefully removed the embers from the hearth to prevent the fire from spreading.
   厨师小心地从火炉中心移开余烬，以防火势蔓延。
2. 2.The engineer inspected the furnace's hearth for any signs of wear and tear.
   工程师检查了炉子的中心部分，寻找任何磨损的迹象。
3. 3. The fireman was called in to extinguish the flames that had reached the furnace's hearth.
   消防员被召来扑灭已经到达炉子中心的火焰。