Phase-specific Average Trajectory

specific current phase

specific differential phase

ac nominal phase-phase potential transformer

ac phase-phase

phase-phase coupling

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

specific gravity， specific weight

specific rotation specific rotatory power

specific rotatory power specific rotation

Specific gravity & specific density

Specific resistivity & specific resistance

3-phase thyristor phase shifting controller

6-phase Y-Y windings with 30 degrees phase displacement

all-phase time-shift phase difference