1.Grandmother's hearing is getting worse. She needs a hearing aid.
"祖母的听觉越来越差,需要戴助听器。"
2.The department owns many modern devices, such as audiometers, phono-laryngograph, and hearing aid testing system, visit-pitch and different speech-language test battery.
3.Objective To evaluate the effectiveness of frequency transpositional hearing aids on hearing and speech rehabilitation for children with profound hearing loss.
4.This refers to the use of a miniature BTE hearing aid that is coupled to an ear insert or earmold (vented or unvented) via a tubing of approximately 0.8 mm inner diameter.