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| 平均脱碳时间 (① Figure 13 shows the change of average decarburization time for each steel grade after revamping of RH facility. 图 13显示了 RH 装置改造后每一钢种平均脱碳时间的变化。②The average decarburization time before upgrade of the RH unit is calculated by the operation data of the year1996. 这台 RH 设备改造前的平均脱碳时间是根据1996 年的操作数据计算的。) | |||