convective derivative substantial derivative
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
boron trifluoride proportional counter
cartridge proportional throttle valve
changeable gain proportional integral differential controller
coincidence proportional counter
control mechanism of proportional valve