тривала експлуатація у важких умовах
duty, off duty
duty, on duty
heavy duty follower spring
heavy-duty
heavy-duty freight car
heavy-duty hoisting equipment
heavy-duty multiple disk steering clutch
heavy-duty pavement
heavy-duty transfer case
heavy-duty fire tender
heavy-duty test
automatic heavy barrel rifle / heavy barrel automatic rifle
heavy-armored (heavy armoured)
active service/ duty
continuous delay
continuous supplies
continuous tone
continuous training
continuous wave
combined arms units and formations continuous artillery combat support
continuous fire
continuous oil film
continuous reconnaissance
continuous rod
continuous running
continuous thrust aeroballistic
continuous aileron
maximum continuous rating
continuous precipitation
continuous wind tunnel
C.W. radar (continuous-wave radar)
continuous-wave radar