перфорована труба підведення повітря
perforated wall
perforated cartridge
perforated disk gunpowder
perforated grain powder
air flow duct
bleed air duct
deicing air duct
ram air duct
air duct recovery
air inlet duct
air intake duct
duct-enclosed fan
duct-inclosed fan
fan exit duct
inlet duct
crossover duct
duct propulsion
fuel duct
flexible duct
gas turbine engine inlet duct
riser duct
subsonic inlet duct
supersonic external-compression inlet duct
supersonic inlet duct
supersonic internal-compression inlet duct
dust filter inlet duct
exhaust duct
launch duct
duct
guidance ground-conditioning duct
aerial refueling / air refueling / in-flight refueling (IFR) / air-to-air refueling (AAR)
air combat capable helicopter / air-to-air capable helicopter