захищена вогнева позиція; (підземна) база
base junction; rotary collector ring (box); rotary base junction (of a tank); rotary connection; slip ring; traverse rotary base junction
defense industrial base / military-industrial base
naval base; naval operating base
hard
hard core
hard intelligence
hard kill
hard power
hard radiation
hard surface runway
hard target
hard-core projectile
ballistic plate, hard armour plate
hard deck
hard foam inner lining, shock absorbing liner
hard and deeply buried target
brake hard
arrow-shaped finned hard core projectile
hard carbon
hard core shell
hard extraction
hard fiber plug
hard pumped
hard rubber tire
hard running
hard service
hard sludge
hard standing
hard starting
hard steel plug
hard to hit target
hard trigger pull