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| O.G. 未燃烟气回收法 (【技】一种用于回收氧气顶吹转炉炉罩内排出的未燃尽炉气的方法。); OG法可回收顶吹氧气转炉炉罩内排出的未燃尽炉气的 方法 | |||
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oxygen gas process : 2 phrases in 1 subject |
| Metallurgy | 2 |
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