v.造渣
This paper introduces the new technique on slagging with biscrap pressed ball in place of fluorite for converter use. 文中介紹了轉(zhuǎn)爐使用雙屑?jí)呵虼嫖炇煸男鹿に嚒?!--www.www.sigorfond.com 中小學(xué)英語網(wǎng)-->