three-dimensional flow

one-(two-, three) dimensional steady flow

velocity potential equation for three-dimensional gas flow

three-dimensional (3D) point position

three-dimensional virtual mass moment of inertia

three-dimensional element

description of object geometry in three-dimensional space

two-dimensional flow

Eulerian equation of one dimensional flow

one-dimensional flow

three flow turbojet engine

two-dimensional element

ad hoc working group on unification of dimensional practices

two-dimensional virtual mass moment of inertia

one-dimensional element

fractal (FRACTional dimensionAL)

three brigades abreast

3CF (three column format 1. Factor - What; 2. Deduction, Analysis / Implication – Why; 3. Output - So What)

non-retractable three-leg landing gear

three-blade tail rotor

three-component balance

three-man crew

three-point landing

three-pointer electric indicator

three-pointer inductive indicator

three-blade propeller

last three

precision three-site radar

three-pronged offensive

three-point resection

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

Three-Axis system (South Korea's military strategy)

air traffic flow management (ATFM)