механізм, що відкриває
breech-opening motor
breech mechanism
lever breech mechanism (LBM)
breech mechanism lever
breech mechanism lever retaining catch
breech-mechanism lever
wedge-type breech mechanism
unlocked breech mechanism
vertical wedge-type breech mechanism
vertically-operated wedge-type breech mechanism
handle of breech mechanism lever
create an opening
high altitude-high opening (HAHO)
high altitude-low opening (HALO)
high-altitude low-opening parachute technique (HALO)
firing signals (opening, shifting, ceasing fire)
air intake opening
air inlet opening
belt opening
clear opening
cylinder block inlet opening
feed opening
magazine feed-piece opening
front-sight opening
limit of opening fire
frame around opening
valve opening lead
muzzle opening
quick-opening cluster
opening portlight
opening charge
opening elevation