[Treatment of ships in the Leningrad commercial port with cyclones B and D].
D055867:Cyclonic Storms; D006856:Hydrogen Cyanide; D051381:Rats; D012767:Ships
D006856:Hydrogen Cyanide
HYDROCYANIC ACID; RATS
Opyt gazovoi obrabotki sudov v leningradskom torgovom portu tsiklonom B i D.