Change rate of phase difference
phase difference change rate
rate of phase difference
rate of change of height anomaly
rate of change of load disturbance
Rate of change of PSA concentration
the rate of change of orientation
time rate of change of force
Wave for rate of change of stress
angle of phase difference
difference of phase angle
difference of phase currents
energy storage of phase change material PCM
enthalpy of phase change
Factor of phase difference