безвідмовний; надійний
accident-free flying / mishap-free flying
mishap-free flying / accident-free flying
fault code description
fault in feed
design fault
fault defect
fault detector
mechanical fault
single fault
fault testing
fault annunciation
fault conditions
fault warning
fault
ground fault
contact-free war
contamination-free
fallout-free
free fall
free fall air drop
free fire zone
free mine
free naval control of shipping
free net
free neutron
free rocket
free-fall bomb
nuclear-free zone
toxic free area
free-fire area
impact free
mine free