міцна фіброва пробка ('корок')
hard steel plug
water jacket plug / water-jacket plug
fiber-buffer disc
fiber-optic helmet-mounted display
fiber-optic communication
fiber-optic transmitter
optical-fiber communication
hybrid fiber coax (HFC)
carbon fiber / carbon fibre (CF)
hard
hard base
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 pumped
hard rubber tire
hard running
hard service