title: Control of nitrogen oxides in boiler flue gases by two-stage combustion.
mesh_terms: D000397:Air Pollution / Q000517:prevention & control*; D005740:Gases; D009584:Nitrogen; D009589:Nitrogen Oxides
chemical_list: D005740:Gases; D009589:Nitrogen Oxides; D009584:Nitrogen
keywords: AIR POLLUTION/prevention and control; GASES; NITROGEN