accelerating pressure gradient

acoustic pressure gradient

adverse pressure gradient

air pressure gradient force

axial pressure gradient

axial pressure gradient profile

baroclinic pressure gradient

barometric pressure gradient

breakthrough pressure gradient

centrifugal pressure gradient

column pressure gradient correction

compressible pressure gradient

critical pressure gradient

critical pressure gradient of particle burst

critical pressure gradient of particle motion

density-dependent pressure gradient

driving gradient pressure

ejection fraction-pressure gradient ratio EFPR

Electron pressure gradient