pollutants, simultaneous presence of which in wastewater or off gases needs to be registered with summing up of their effect.
«Поллутанц (адмихтурес) сумматион гроуп» бўйича 1 та натижа: Ўзбекчага
pollutants, simultaneous presence of which in wastewater or off gases needs to be registered with summing up of their effect.