临界点含碳量(【技】在钢水冶炼过程中，当钢水含碳量较高时，脱碳速率的主导限制因素是氧的传质速率；随着脱碳反应的进行，钢水中含碳量降低到一定的浓度值后，脱碳速率的主导限制因素由氧的传质速率转变为碳的传质速率，脱碳速率出现明显下降，此时的碳含量称之为临界含碳量。: As seen in part (b) of Figure 9, the carbon content at the critical point is about 0. 688 weight percent and the mean value of the decarburization rate is about 0. 102 weight percent/minute, with standard deviations of 0. 11 and 0.01, respectively. 如图 9(b) 所示，临界点含碳量约为 0.688 质量分数，脱碳速度平均值约为 0.102 质量分数/ min, 标准偏差分别为 0.11和 0.01。)
转炉钢水熔池含碳量(The light meter system can correlate the characteristics of the light intensity curve with the carbon content in the steel bath in the vessel. 该光学仪表系统能建立起发光强度曲线特点与转炉钢水熔池含碳量之间的对应关系。)
临界含碳量(carbon content at critical point: Below a critical carbon content the rate of mass transfer is insufficient to react with all the injected oxygen. 低于临界含碳量时，传质速度不足以维持与喷人的全部氧进行反应。)
初始硅含量(Silicon in hot metal has a strong effect on dephosphorization and this is shown in Fig3-5 from which it can be seen that the slope of the line connecting the initial and final phosphorus in hot metal, increases as the initial silicon content decreases. 铁水含硅量对脱磷有重要影响，由图 3-5 可以看出：铁水含磷量起点和终点连线的斜率随初始含硅量的降低而增加。)
溶解铝含量(A substantial decrease (>0.005percent) in the soluble aluminium content between the last ladle sample and mold is an excellent indication of a reoxidation problem at the caster. 结晶器(钢水中)溶解铝含量如果比钢包最后一次试样溶解铝含量大幅度降低(>0.005%),那么这是连铸机存在二次氧化问题的最好标志。)
钢的含硫量(Machinability, an important engineering consideration, can be enhanced by increasing the sulphur content of the steel to as much as 0.3 per cent, compared with about 0.04 per cent which is normal. 机械加工性能是工程上考虑的一项重要因素，它可以通过将钢中含硫量提高到0.3%得火提高。正常情况下钢中含硫量约为0.04%。)
钢中总氧含量(High levels of FeO and MnO in the ladle slag will result in high total oxygen contents in steel as shown in Figure 1. 如图 1 所示，钢包渣中 FeO 和 MnO 含量高会导致钢中全氧量提高。)
