редуктор
gear reduction unit / gear-reduction unit
reduction gear
reduction ratio / gear ratio
airscrew reduction gear
planetary reduction gear
intermediate reduction gear box
helical gear transmission
main gear box / main rotor transmission
main rotor transmission / main gear box
transmission / gear box
camshaft gear (timing gear)
arms reduction
cutback syn. reduction
reduction and limitation of armed forces and armaments
risk reduction
Strategic Arms Reduction Treaty (START)
mine risk reduction
wear reduction factor
reduction
reduction assets
oxidation-reduction reaction
propeller reduction gearing
reduction valve failure
NOx reduction technology
targeted emission reduction
emission reduction
noise reduction
noise reduction activity
noise reduction at source
noise reduction needs
noise reduction requirements
noise reduction strategy