щільність верхніх шарів атмосфери
high density air traffic
upper air fallout
upper-air layer
upper air
upper air observation
upper air route
upper-air sounding
upper-air weather chart
density of explosive
gas density
high-density metal
loading density
low-density minefield
pattern density function
traffic density
antitank density
high-density airspace control zone (HIDACZ)
high density shock tube
density of travel
ambient density
density balance
density altitude display (DAD)
atmospheric density
standard density
surface of equal density
density gradient
density meter
density of a surface source
density of aerofoil
density of fluid
exospheric density
high-density airport