безаварійна робота; надійна робота (у разі відмови окремих елементів)
fail-safe structure
fail-safe procedure
fail-safe design
fail-safe
fail a polygraph test
fail the polygraph
ESC fail
flashing might fail, especially on highly integrated AIOs
updating might fail
safe operation of the vessel
safe operation
clandestine operation; covert operation
humanitarian operation; humanitarian relief operation (HUMRO)
PZ operation (pick-up zone operation)
noncombatant evacuation operation (NEO); non-combat evacuation operation
low-energy (eye-safe) laser
made safe
safe anchorage
safe and secure environment
safe area
safe corridor (naut.)
safe entry time
safe haven
safe humanitarian zone
safe lane
safe speed
safe state
ship citadel (safe haven from pirates)
safe terrain clearance
Trails, Lay, Aimpoint established, Boresight verified, Safe [verification of lay], Prefire checks performed, Ammunition Prepared
safe a gun
blow a safe house