Pardonnet Manufacturing Company - NCIC trailer make code
Parts Application Reliability Data (IEEE)
Periodic and Random Deviation
Personal Alarm Radiation Dose (SAUS)
Personnel Actions and Records Directorate - Military Personnel Center (AABC)
Phased Array Radar Detection/Track (SAUS)
Pilot Airborne Recovery Device - A balloon-parachute
Pilotless Aircraft Research Division - Later, Applied Materials and Physics Division - Langley Research Center
Post-Accident Radioactivity Depletion - Nuclear energy (NRCH)
Precision Annotated Retrieval Display - System - Computer science
Project Activities Relationship Diagram (PDAA)
Protect as Restricted Data
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