常見(jiàn)例句雙語(yǔ)例句Most of the steel for line pipe is made by open-hearth, electric furnace, and basic-oxygen processes.大部分建管道用管子的鋼材由平爐、電爐和堿性頂吹轉(zhuǎn)爐生產(chǎn)。www.infopetro.com.cn 返回 basic electric furnace steel