The blast furnace gas(BFG) which is byproduct of ironmaking plays an important role in the energy construction of iron and steel works.是什么意思_The blast furnace gas(BFG) which is byproduct of ironmaking plays an important role in the energy construction of iron and steel works.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句