здвоєні гвинти
dual rotors / twin rotors
tandem-rotor helicopter (twin rotors mounted longitudinally)
dual spacing of twin tires
twin
twin engine aircraft
twin-barrelled
twin-mount
twin detonating fuse
cam and twin lever
coupled twin engines
coaxial rotors
twin-spool compressor
twin electronic booster
twin temperature indicator
upper and lower coaxial rotors
wash from rotors
thrum of the engine (rotors etc.)
dual purpose
dual warhead
dual-capable unit
dual-firing circuit
dual-purpose
dual-purpose improved conventional munition (DPICM)
dual-purpose products
dual-purpose technology
dual-role aircraft
dual-thrust rocket motor
dual-use commodity
dual-use technology
High Explosive Dual Purpose (HEDP) Grenade (known as M40)
Wassenaar Arrangement on Export Controls for conventional arms and dual-use goods and technologies
Dual-Capable Aircraft (DCA)