nitr - one-
- oil eliminator
- oil flotation
- oil forge
- oil fuel
- oil furnace
- oil gear
- oil gilding
- oil hardening
- oil injection rat
- oil injection rate
- oil injection system
- oil lighter
- oil lubrication
- oil mist dust collector
- oil quenching
- oil retention
- oil roll machine
- oil sand
- oil staining
- oil strainer
- oil-and-whiting test
- oil-bath heating
- oil-bath lubrication
- oil-buoyancy flotation
- oil-cooled
- oil-fired
- oil-fired furnace
- oil-fog lubrication
- oil-hardened
- oil-hardening steel
- oil-impregnated bearing
- oil-in-water-type coolant
- oil-mist lubrication
- oil-quenched
- oil-splash guard
- oil-to-coke replacement ratio
- oildag
- oiler
- oiling
- oiling machine