OР кислого характеру
acid and organic vapors gas mask
acid bomb
hydrocyanic acid
nitric acid
picric acid
sulphuric acid
acid fume
Operation Acid Drop
acid
acid cleaning
acid number
alkylation acid
carbolic acid
organic acid
petroleum acid
volatile acid
acid soot
acid drop
gas gun; (tear) gas launcher
blister agent/ gas
blood gas
casualty gas
choking agent / gas
combustion gas
gas alarm / warning
gas analysis system
gas and electricity service
gas bleed
gas chamber
gas defense
gas density
gas mask