Technology PDF definitions

Portable Document Format 
Policy Decision Function 
probability density function 
probability distribution function 
Program Development Facility 
Processor Defined Function 
Pocket Dosimeter, FEMA 
plant design factor 
Portable Document File 
Printer Definition File 
Package Definition File 
Portable Data File 
Portable Data Format 
Power Density Function 
Power Distribution Frame 
Precision Direction Finder 
Printer Description File 
Production Data Facility 
PROGRAMMABLE DATA FORMATTER 
Pulse Duty Factor 
Passive Direction Finder 
Policy Definition Function 
Policy Distribution Function 
Portable Data Files 
Post-Detection Filter 
Power Distribution Function 
Pre Defined Function 
Primary Display Function 
Printer Description 
PROBLEM DETERMINATION FACILITY 
Product Description File 
Program Data Form 
project design flood 
Propability Density Function