digital proportional integral differential control
electro-hydraulic proportional governor valve
Digital Archived Digital Publish
Digital Radiography Digital Radiograph
3 He proportional counter
3He proportional counter
4π flow-gas proportional counter
4πβ proportional counter
A method of proportional equation
AC proportional and resonant regulator
adaptive proportional combination algorithm
adaptive proportional fairness
base proportional driving circuit
BF3 proportional counter
bias in proportional control
boron trifluoride proportional