спостереження з аеростата
observation balloon
observation point / observation post (OP)
barrage balloon
balloon bed
balloon tire
balloon wing
balloon-launched aeroballistic
ballonet balloon
balloon
balloon envelope
balloon probe
balloon sounding
captive balloon
constant-level balloon
dirigible balloon
free balloon
pilot balloon
radiosonde balloon
target balloon
captive balloon-borne communication
radar decoy balloon
unmanned balloon
unmanned free balloon
air balloon
balloon-borne radiosonde
radar target balloon
radiosonde balloon (rabal / RABAL)
radiosonde balloon release
radiosonde balloon wind data
close observation
command-and-observation post
forward observer (FO), forward observation officer; (artillery) observer / spotter