ножний спусковий механізм
web foot / webbed foot
vertically-operated wedge-type breech mechanism
trigger assembly / mechanism / module
foot-firing mechanism
blowback-operated weapon
gas-operated
gas-operated weapon
hand-operated firearm
manually operated
power operated
power-operated
power-operated transporter
recoil operated weapon
recoil-operated
remotely operated (underwater) vehicle (ROV / ROUV); underwater robot
remotely operated video enhanced receiver (ROVER)
straight blowback-operated small arms
victim-operated improvised explosive device (VOIED)
victim operated IED (VOIED)
solenoid-operated circuit breaker
automatically operated
blow-back operated machine gun
cam-operated valve
crew-operated weapon
hand-operated brake valve
fluid-operated
fluid-operated controller
differentially operated flap
power-operated control
hydraulically-operated freight loader
recoil-operated system
dynamic remotely operated navigation equipment (DRONE)