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oxygen top-blowing
Metall.	氧气顶吹; 纯氧顶吹; 顶部吹氧
oxygen-top blowing
Metall.	氧气顶吹; 纯氧顶吹; 顶部吹氧
oxygen top blowing
Metall.	氧气顶吹
Tech.	顶部吹氧法炼钢

oxygen top-blowing : 13 Phrasen in 2 Thematiken

Metallurgie	12
Technik	1