phph indicatorphasephase accelerationphase alternation line lphase alternation line systemphase amplitude modulation multiplierphase analysisphase anglephase angle modulationphase angle voltmeterphase balancephase comparatorphase comparison tracking systemphase conjugacyphase connectionphase constantphase controlphase converterphase correctorphase currentphase delayphase detectorphase deviationphase deviation constantphase diagramphase differencephase displacementphase distortionphase equalizerphase errorphase focusingphase frequency distortion phase distortionphase integralphase inverterphase jitterphase lagphase leadphase lockphase locked emissionphase locked loopphase marginphase modulated transmitterphase modulationphase plan analysisphase plan portraitphase plane analysisphase propagation ratiophase resolutionphase retationphase reversal