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据“Stahl und Eisen”Nr.11(1985)报道:目前,许多工业国家的钢铁工业都把开发和投资重点放在二次冶金和连铸这二个领域。由五十年代真空脱气法发展而来的操作技术和反应容器近年来得到全面的开发。钢
According to “Stahl und Eisen” Nr.11 (1985): At present, the steel industry in many industrialized countries places emphasis on development and investment in the areas of secondary metallurgy and continuous casting. Operating techniques and reaction vessels evolved from vacuum degassing in the 1950s have been fully developed in recent years. steel