By S-allying and selected faint acidic slag technology during reductionperiod, the recovery yield of S is up to 93%.
通过在还原期S 合金化和二次造亚酸性炉渣工艺,把S的收得率提高到93%。
2
The current five-year plan, which contains few other numerical targets, envisages a 10% reduction in concentrations of the worst air pollutants and a 20% increase in energy efficiency over the period.