resistance to parent phase aging treatment
parent phase strengthening
strain energy of parent phase
ac nominal phase-phase potential transformer
self-intensity of binding phase phase
Single-phase Phase-Locked Loop
Three Phase Phase-Locked Loop
Tri-Phase Phase Transfer Catalysis
three-phase phase-lock loop
3-phase thyristor phase shifting controller
6-phase Y-Y windings with 30 degrees phase displacement
all-phase time-shift phase difference
anti-galloping phase-to-phase spacer
change from the vapor phase to the liquid phase