стандартна ізобарична поверхня
depot maintenance (beyond O and I level activities, performed in an industrial-type facility) / D-level maintenance
background sound pressure level
overall sound pressure level
adjusted slope of sound pressure level
change in slope of sound pressure level
slope of sound pressure level
average slope of sound pressure level
final background sound pressure level
high level pressure chart
low level pressure chart
noise pressure level
pressure level
sea level atmospheric pressure
sea level pressure
sound pressure level
360° fixed radar
fixed
fixed ammunition
fixed and floating bridge
fixed artillery
fixed bridge
fixed facilities
fixed frame metal detector
fixed frequency channel
fixed installations
fixed post
fixed span
fixed wire entanglement
fixed-orbit satellite
fixed-wing aircraft
naval operating base (fixed or temporary)
fixed position defense