para - perh
- partial molar free energy
- partial oxidation
- partial oxidation cracking
- partial pressure
- partial racemization
- partial rate factor
- partial reaction
- partial reduction
- partial reflux operation
- partial relief
- partial solvent
- partial vacuum
- partial valence
- partial valency
- partial volume
- partial vulcanization
- partial-immersion thermometer
- partially miscible
- partially stabilized gasoline
- particle
- particle board
- particle geometry
- particle scattering factor
- particle size
- particle size analysis
- particle size distribution
- particle sorting
- particle-particle packing
- particle-size analysis
- particle-size determination
- particular
- particular reinforcement
- particulate
- particulate composite
- particulate fluidization
- particulate solids
- parting
- parting agent
- parting film
- parting line
