поршневий затвор, що висувається по осі ствола
parallel barrage
parallel pursuit
spiral parallel groove
creeping parallel barrage
immovable parallel barrage
parallel sweep search
dependent parallel approach
independent parallel approach
plane-parallel flow
parallel
parallel approach
parallel rule(r)
parallel track pattern
get the guns parallel on their zero line
parallel fire
parallel lines of fire
parallel sheaf
parallel staff
parallel training
parallel trench
breech screw
screw breechblock
cap retaining pin screw
bipod body wing screw
deflector clamp screw
lever damp screw
Venturi lock screw
elevating screw joint pin nut
elevating screw knob
elevating screw mechanism
elevating screw tube
lower elevating screw