open hearth furnace

• 平炉

open hearth furnace的用法和样例：

例句

1. This open-hearth furnace will be ready to produce steel by the end of the year.
   这座平炉年底可以出钢。
2. One way to do this is by using an open hearth furnace,where pig iron and scrap steel are heated.
   炼钢的一种方法是将生铁和废钢放在平炉内加热。