застійна зона
dead drop / dead-drop exchange
arid region
army readiness region
flight information region (FIR)
geostrategic region
strategic region
air defense region (ADR)
depot distribution region
ensure peace and stability in the region
hydrodynamic lubrication region
irrotational region
stagnation region
vorticity region
search and rescue region
simply coherent region
simply connected region
transition region
densely populated (densely-populated) area (region) / territory / country
confusion region
region of interest (ROI)
dead letter-box
dead mine
dead space
land dead on target
top dead center (TDC)
dead ahead
dead eye
dead radio
dead hand
dead load
dead mileage
dead stop