[ASPIRATION APPARATUS FOR DETERMINING THE CONCENTRATION OF LONG-LIFE RADIOACTIVE SUBSTANCES IN THE ATMOSPHERE].
D000397:Air Pollution; D000398:Air Pollution, Radioactive; D001272:Atmosphere; D004864:Equipment and Supplies
AIR POLLUTION, RADIOACTIVE; EQUIPMENT AND SUPPLIES
ASPIRATSIONNAIA USTANOVKA DLIA OPREDELENIIA KONTSENTRATSII DOLGOZHIVUSHCHIKH RADIOAKTIVNYKH VESHCHESTV V ATMOSFERE.