金属螺丝 meaning in English

screws of metal

The baha is anchored to the skull by a tiny titanium screw . instead of sounds entering the outer ear canal and impinging on the eardrum as in normal hearing , the sounds amplified by the device are conducted through the screw and the bones of the skull to the cochlea , the snail - shaped inner ear structure responsible for converting sounds into electrical signals carried to the brain by the auditory nerve
骨固定式助听器利用钛金属螺丝固定在耳后方的头骨，助听器扩音机放大的声音经由钛金属螺丝及头骨直接传到耳蜗，不像传统空气传导式助听器般，声音要经过外耳道，再透过鼓膜传音传至耳蜗。