артилерійська лінійка
mil rule / scale
rule of law
slide rule
strong-arm rule
aiming rule operator
aiming rule
alidade rule
decision rule
Prandtl-Glauert rule
rule
rule-making
nautical slide rule
parallel rule(r)
one half thickness rule
safe pocket rule
mil rule
radiation slide rule
L119 light gun (105 mm light gun)
submachine gun / sub-machine gun (SMG; smg)
gun control equipment / gun-control equipment (GCE)
duck gun (duck-gun)
flame gun / flaming gun
gun by gun
anti-aircraft gun
antiaircraft machine gun
anti-tank gun
armed gun
automatic aircraft gun
auxiliary gun
breech-loading gun
chain gun
close-in stun gun