зафіксувати затвор у відкритому положенні.
open burning and open detonation (OBOD) (= open-pit)
backsight slide; back-sight slide
feed block slide (feed-block-actuating slide)
pull back the slide or bolt
open bolt
bolt-lock pin
bolt-sleeve lock
bolt-sleeve lock spring
open country / open ground
hold-open operating lock
wheel lock pistol (wheellock / wheel-lock)
infrared lock (IR Lock)
open position
slat open position
slide
slide rule
retractor slide
elevating slide
air slide valve
barrel slide
blocking slide
elevation slide nut
slide valve
escape slide
surface of slide
rear-sight slide cap
nautical slide rule
curve-slide sight
slide down a rope
slide hammer dent puller
radiation slide rule
death-slide