- oxygen-18 isotope shift
- oxygen activation logging
- oxygenase
- oxygenate
- oxygenated fuel
- oxygenated fuels
- oxygenated pollutant
- oxygenated treatment
- oxygenation
- oxygenation keeping alive
- oxygenator
- oxygen barometer of mineral assemblage
- oxygen bomb calorimeter
- oxygen bottom-blowing furnace
- oxygen bottom-blown converter steelmaking
- oxygen buffer
- oxygen capacity
- oxygen carrier
- oxygen concentration corrosion
- oxygen concentration of inflammability limit
- oxygen consuming content
- oxygen consuming organic pollutants monitoring
- oxygen-containing organiccompounds
- oxygen content
- oxygen content analyzer