1. desulfurization in iron and steel making 
   钢铁脱硫反应
2. Mature technologies are applied to power plants including desulfurization, denitrification and low nitrogen combustion procedures. 
   成熟的燃煤污染控制技术主要应用于发电厂，包括脱硫、脱氮工艺或低氮燃烧。
3. The allowed coal-burning boilers of 14 MW or larger should comply with stringent emission limits through use of low sulfur coal, highly effective technology for desulfurization and dust removal and on-line monitoring instruments. 
   规划保留的20吨以上燃煤锅炉，通过使用低硫优质煤、应用高效脱硫和除尘技术以及采取其它节能控污措施，并安装在线监测仪，达到严格的排放标准。
4. All currently operating coal-fired power plants in Beijing should be transformed, and adoption of desulfurization and denitrification procedures will be completed before 2005 so that the total emissions of SO2 and NOx will be declined. 
   对于目前北京在用的燃煤发电厂，需要在2005年以前全部改造并使用脱硫、脱氮工艺，努力降低二氧化硫和氮氧化物的排放总量。

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