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平炉炼钢
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平炉炼钢
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炼钢
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open hearth steelmaking
平炉炼钢
以煤气或重油作为燃料形成高温火焰,在反射炉炉膛内加热生铁和废钢等原料,使之熔化后精炼成钢液的炼钢工艺。
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ancient cartography
Ancient Cedar Mountain of Huanglong in Songmingxian
Ancient Cedar Tree in Zhong Temple in Qionglai
ancient ceramic relics restoration technology
Ancient Characters by Using Inscription on Bronzes
ancient chart
ancient Chinese academy
ancient Chinese aids and staff system
ancient Chinese architectural laws and regulations
ancient Chinese architecture grading system
ancient Chinese art and technique of flying
Ancient Chinese Art Education
ancient Chinese articles of clothing
ancient Chinese artifacts cast iron decarburized in solid state
ancient Chinese artifacts of forgeable cast iron
ancient Chinese belt accessories
ancient Chinese bronze weapons with meteoritic iron blades
ancient Chinese Buddhist temples
ancient Chinese central official system
ancient Chinese characters
ancient Chinese chess games
ancient Chinese coins
ancient Chinese construction technology
ancient Chinese dance
ancient Chinese emperor system
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