But by 1800 his increasing deafness was beginning to have a profound effect on his outlook on life.
但是，到1800年，他耳聋的加重开始对他的人生观产生巨大的影响。
Objective To evaluate the effect of hearing AIDS for children with bilateral sensorineural deafness who had severe and profound hearing loss by fitting and adjusting hearing AIDS regularly.
目的为双耳重、极重度感音神经性聋患儿选配助听器，并进行定期调试，观察助听效果。
It is more suitable for the old patients with severe and profound binaural deafness.
非常适合双耳重度和极重度聋的老年人。
应用推荐