klockner-maxhutte steelmaking process kms底吹: bottom blowing煤: coal氧: oxygen的: 4次方是 The fourth power of 2 i ...复合: compound; complex; composite ...下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:底吹煤氧的复合吹炼法，即可在微信中查询翻译
