тил, тиловий район
back-to-back circuit
back-to-back connection
back-to-back radio stations
back-to-back relay
back-blast area
back billeting area
back blast area
area of war/war area
potential danger area (trouble area)
hazard area / hazardous area
killing area / kill area
open area danger area
back-up fire control
back-up system
cut back co-operation
I read back
play back kit
pull back
push back
read back
reverse engineering ( back- wards engineering)
Camel-back water pouch
Field Pack, Air Support Back
back brief / backbrief
peel back
back on the block
back-up circuit breaker
armor back plate
back bearing housing
back blow
back contact
back cushion