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RH-oxygen blowing process。
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met.
RH-OB 法
(【技】以 RH 设备为基础，在真空室侧壁上安装吹氧枪，向真空室的钢水表面吹氧，用以脱除钢水中碳的工艺。)
RH-oxygen blowing process
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met.
RH-OB 法
(【技】 RH-OB process。)
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