Apparent position and apparent velocity
apparent velocity of fluid
apparent velocity theorem
apparent-velocity filter
actual groundwater velocity
average groundwater velocity
groundwater velocity and direction
apparent heat source and apparent moist sink
the analysis of groundwater flow and groundwater b
the analysis of groundwater flow and groundwater budget
average velocity， mean velocity
group velocity and phase velocity
ratio of pulp velocity and sire velocity
velocity derived from velocity spectrum
3D apparent density inversion