отвір для блокування
through-hole, pin-in-hole
redundant automatic interlock
drive shaft interlock ball
interlock valve
L.Н. interlock valve
interlock circuit
down-hole hammer
fighting hole
fill a hole (in the front)
flood hole
hole
hole in (розм.)
punch / smash / tear a hole (in the defenses)
shaped hole
shell crater / hole
fire in the hole!
trunnion hole
trunnion-pin hole
blade pivot hole
bullet-hole gauge
bush firing hole (of ordnance)
crankpin hole
well hole of receiver
filling hole
flash hole
funnel-shaped hole
fuze-hole plug
airframe hole
gold-lined touch hole
access hole
weep hole
port hole