phas - plas
- pivot
- pivot bearing
- pivot bolt screw
- pivot fixing
- pivot gun
- pivot mount
- pivot of mainspring
- pivot yoke
- pivoting wing
- placement of road signs
- placing of anti satellite weapons in outer space
- plain flap interconnect link
- plain sector
- plain tailpipe
- plain through route
- plain valve head
- plan position data display
- plan position indicator
- plan speed indicator
- plan view
- planar board
- planar midwing
- planar model
- planar orbit
- planar pair of wing panels
- planar trajectory
- planar wing
- planck's constant
- plane
- plane change maneuver
- plane mirror
- plane of engine chambers gimbaling
- plane of engine nozzles exit
- plane of injection
- plane of projection
- plane of symmetry
- plane of technological joint
- plane of the response
- plane shock
- plane table
