[Present state of purification of industrial discharges into the atmosphere from nitrogen oxides].
D000397:Air Pollution; D001272:Atmosphere; D009584:Nitrogen; D009589:Nitrogen Oxides
D009589:Nitrogen Oxides; D009584:Nitrogen
AIR POLLUTION; NITROGEN
Sostoianie problemy ochistki ot okislov azota promyshlennykh vybrosov v atmosferu.