substantial derivative of a hydrodynamic quantity

substantial change of a hydrodynamic quantity

material derivative of a hydrodynamic quantity

local change of a hydrodynamic quantity

local derivate of a hydrodynamic quantity

material change of a hydrodynamic quantity

substantial da-mage

substantial co-ordinates

substantial damage

substantial element

substantial volume

aircraft substantial damage

hydrodynamic control fin

hydrodynamic drag

hydrodynamic lubrication region

hydrodynamic test

quasi-hydrodynamic lubrication

quantity-distance principle

subcritical quantity

supercritical mass / quantity

militarily significant quantity

fuel quantity transmitter

gasoline quantity gauge

electromagnetic quantity

fuel quantity indicator

initial quantity order

effective dihedral derivative

proportional-integral-derivative (PID)

proportional–integral–derivative controller (PID controller / three-term controller)

symmetrically deflected elevon effectiveness derivative

control derivative

proportional–integral–derivative (PID) controller

Derivative Method