adj.使用平爐(煉鋼)的

A log fire roared in the open hearth. 柴火在敞開(kāi)著的壁爐里熊熊燃燒。

Later added 2 open hearth furnaces for producing steel castings. 后來(lái)又說(shuō)2平爐電爐生產(chǎn)鑄鋼件。

She was standing far too near the open hearth and her nightdress caught fire. 她站的地方離壁爐太近，所以她的睡衣著火了。

One way to do this is by using an open hearth furnace,where pig iron and scrap steel are heated. 煉鋼的一種方法是將生鐵和廢鋼放在平爐內(nèi)加熱。

The fuel burner of an open hearth furnace is water cool, as is the valve that regulate the flow of air and waste gases. 平爐的燃料燃燒室是用水冷卻的，控制空氣和廢氣的閥也是水冷的。

One way to do this is by using an open hearth furnace, where pig iron and scrap steel are heated . 煉鋼的一種方法是將生鐵和廢鋼放在平爐內(nèi)加熱。