two-dimensional flow

one-(two-, three) dimensional steady flow

two-dimensional element

two-dimensional virtual mass moment of inertia

two-seat / two seat

Eulerian equation of one dimensional flow

one-dimensional flow

velocity potential equation for three-dimensional gas flow

three-dimensional flow

three-dimensional (3D) point position

ad hoc working group on unification of dimensional practices

three-dimensional virtual mass moment of inertia

one-dimensional element

three-dimensional element

description of object geometry in three-dimensional space

fractal (FRACTional dimensionAL)

duplex / two-way channel

stabilized in two axes

two brigades abreast

two-cycle engine

two-handed riot baton

two-man foxhole

two-prong attack

two-sided exercise

two-stage missile / rocket / vehicle

two-stage solid-propellant ballistic vehicle

two-up formation

two-way radio

two-lane all-weather road

bi-strategic command (Bi-SC) (of the two Strategic Commands )

two-crewmember cockpit

two-man fire trench

four by two