Degree of interpenetration

a single phase equivalent circuit

a priori phase

A Phase Locked Loop

A Phase

A new type phase standard source

A new phase locking method with zero crossing

a breakdown for lack of a phase

90-degree phase shift method

90° phase shift

90° phase

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

6 phase

3-state phase detector

3-stage phase transition process

3-phase thyristor phase shifting controller

3-dimensional phase Doppler particle analyzer (PDPA)

3-d phase space