bessemer pig iron [机] 柏思麦酸性转炉生铁
- Bessemer process: Technique for converting pig iron to steel invented by Henry Bessemer in England in1856 and Brought by him into commercia
柏塞麦炼钢法:1856年由英国的柏塞麦发明的将生铁转变成钢的技术,1860年把该技术投入商业生产。 - Pass splendid specimens of Anglo Norman architecture, pass pedestrians and pederasts, open hearth furnaces, basic Bessemer mills, dynamos and transformers, pig iron cas
机车经过盎格鲁-诺曼式建筑的堂皇标本,经过了步行者和男同性恋者、天冶炼炉、用贝塞麦法的磨坊、电机和变压器、铁块和钢锭。
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