Đồng nghĩa của safety device

cutout circuit breaker kill switch safety switch trip switch

safety net protection safeguard shield buffer guard screen fallback insurance fail-safe preventive measure protective umbrella safety plug safety valve sheet anchor bulwark cover buckler armor ward ammunition wall aegis armament armour egis bumper rampart pad cushion fender fence protective device safety safety guard overflow safety precaution valve security defence precaution preventive surety escort prophylactic shelter indemnity defense palladium caution convoy safety measure provision protector deterrent support immunity barrier fortification safeguarding guarding preservation assurance stronghold safekeeping refuge shielding guarantee care bastion guardianship resistance sanctuary custody hedge conservation preventative indemnification salvation buttress supporter defender warranty keeping coverage shock absorber mainstay prop preventative measure hindrance block trust obstruction impediment weapon curb restraint check precautionary measure haven remedy deterrence safeness backstop charge maintenance protecting protective measure asylum upkeep upholding barricade custodianship backing reassurance fastness keep supervision mail saving warrant tutelage safe keeping resilience insurance policy cocoon cushioning invulnerability shade strength surveillance certainty insurance cover absorber stability allowance endorsement self-defense good hands warfare weaponry munitions something to fall back on defenses defences apron mask financial protection hiding concealment housing citadel arms harbour retreat harbor life assurance life insurance prudence forethought preventative medicine preventive medicine preserving conserving sustentation harborage foresight circumspection canniness perpetuation safe harbor preserval evaporation care and feeding storage tanning refrigeration hiding place prevention protective reinforcement plate breastplate panoply belt and braces obstacle neutralizer possession disincentive armor plate suit of armor protective clothing bulletproof vest chain mail flak jacket coat of mail suit of armour body armor body armour breastwork embankment anticipatory measure bank castellation battlements pledge protectorship patronage trusteeship battlement bartizan earthwork collateral partition protective wall parapet buffet pawn bond underwriting gage hostage earnest guaranty bail covenant gauge contract

lifeline rescue aid help line link salvation support sustenance helping hand life belt means of survival rescue device way of continuing

safety factor safety glass safety goggles safety guard safety harness safety harnesses safety-deposit boxes safety-deposit box safety deposit safety curtains safety curtain safety cone