[Hygienic evaluation of systems for heating intake air by burning natural gas].
D000393:Air Pollutants / Q000032:analysis*; D005579:Fossil Fuels; D006361:Heating / Q000379:methods*
D000393:Air Pollutants; D005579:Fossil Fuels
Gigienicheskaia otsenka sistem dlia nagreva pritochnogo vozdukha pri szhiganii prirodnogo gaza.