dore furnace

例句：

1. 1. The engineer designed a dore furnace to heat the factory building.
   工程师设计了一个炉子来加热工厂大楼。
2. 2.The dore furnace was used to melt metal into a liquid form.
   炉子被用来将金属熔化成液态。
3. 3. The dore furnace was essential for the operation of the factory.
   炉子对于工厂的运营至关重要。