зворотний спалах; різкий зворотний ривок колінчастого вала
ballistic impact point (BIP) / ground (predicted) impact point (PIP)
back-to-back circuit
back-to-back connection
back-to-back radio stations
back-to-back relay
acoustic impact
angle of impact
blunt impact ammunition
impact error
impact fuze
impact-sensitive chemical
mean point of impact (MPI)
multiple rounds simultaneous impact (MRSI)
point of impact (POI)
psychological impact / shock
quick-impact projects
environmental impact
Environmental Impact Assessment (EIA)
impact free
impact survey
round 1 impact
impact distribution pattern
significant impact / influence
designed point of impact
ditching impact
apparent center of impact
impact power
impact surface
impact velocity
impact zone
velocity of impact
extreme impact damage