спинка сидіння
air-cushion vehicle
cushion
cushion disk
cushion of air
cushion spring
head cushion
air-cushion effect
air-cushion craft (vehicle)
back-to-back circuit
back-to-back connection
back-to-back radio stations
back-to-back relay
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 fork