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助听器是一种电声放大装置,将声音放大并传输到听力损失患者的耳内,从而使听力损失患者得到声音补偿,听到以前听不清、听不到的声音。建起听力障碍者与有声世界的桥梁,助听器无疑是一种好的选择。根据助听器的外形和佩戴位置的不同可分为三种：盒式、耳背式和耳内
The hearing aid is an electroacoustic amplifier that amplifies and transmits the sound to the ear of a hearing-impaired patient so that the hearing-impaired patient is compensated for sound and can hear previously unintelligible and inaudible sounds. Building a bridge between the hearing impaired and the voiced world, hearing aids is undoubtedly a good choice. According to the shape and location of the hearing aid can be divided into three types: cassette, ear and ear style