- water pollution
- water ring
- water saturation
- water separator
- water shooting
- water spray
- water tempering
- water witch
- water-repellent
- watercolor
- watercone
- watered
- waterproof adhesive
- waterproofing
- waterproofing agent
- waterproofing oil
- waterproofing paint
- watertight bulkhead
- watertight door
- watery
- watson factor
- wave front
- wavelite
- wax
- wax cake
- wax chiller
- wax distillate
- wax emulsion
- wax filter
- wax flake
- wax fractionation
- wax like
- wax manufacturing
- wax paper
- wax pencil
- wax plant
- wax press
- wax shale
- waxing
- waxy
- waxy crude
- waxy oil
- way shaft
- we strength
- wear away
- wear process
- wear test
- wearing part
- wearing ring
- weather chart
- weather condition
- weather extreme
- weather station
- weathered crude
- weathered distillate
- weathered ore
- weathering
- weathering correction
- weathering deposit
- weathering residue
- weathering steel
- weathering velocity
- weatherproof
- volatility test
- volatilization
- volborthite
- volcanic bomb
- volcanic breccia
- volcanic chimney
- volcanic dust
- volcanic eruption
- volcanic flow
- volcanic foam
- volcanic gas
- volcanic island
- volcanic pipe
- volcanic tuff
- volcanology
- volhynite
- volley shooting
- voltage rise
- voltaic cell
- voltaite
- voltol
- voltolization process
- voltzite
- volume concentration
- volume control
- volume diffusion
- volume flask
- volume fraction
- volume loss
- volume pump
- volume tank
- volumeter
- volumetric analysis
- volumetric efficiency
- volumetric equation
- volumetric gauge
- volute gear