Abbreviated profile of hearing aid performance APH

aid to learning

aid to melting

Aid to Navigation

aid to navigation buoy

aid to navigation in lock area

aid to navigation on canal

aid to navigation on inland waterways

aid-to-navigation

air conduction hearing aid

audible aid to navigation

automatic satellite computer aid-to-navigation

auxiliary input device aid-to-navigation

bone conduction hearing aid

carbon hearing aid

chinese aid to foreign countries

conventional hearing aid

democracy aid to Africa

digital hearing aid