中文翻译与英英解释

助听器。

hearing:    n. 1.听(动作或过程)。 2.听力，听觉。 3.发言 ...

aid:    n. 1.帮助，援助。 2.帮助者，助手。 3.辅助设备 ...

a conical acoustic device formerly used to direct sound to the ear of a hearing-impaired person
同义词：ear trumpet,

an electronic device that amplifies sound and is worn to compensate for poor hearing
同义词：deaf-aid,

A hearing aid is an electroacoustic device which typically fits in or behind the wearer's ear, and is designed to amplify and modulate sound for the wearer. Earlier devices, known as ear trumpets or ear horns,Comparison of Hearing Aids Over the 20th Century.

例句与用法

A hearing aid helps to overcome defects in hearing .
助听器有助于克服听觉缺陷。

One remarkable use for transistors is in hearing aids .
晶体管的一项特别引人注意的应用是在助听器方面。

It is possible today to have hearing aids which help greatly in overcoming loss of hearing .
现在已能使用助听器，这对于克服听觉损伤大有裨益。

Nearly all hearing aids now manufactured make use of transistors, and are much the better for it .
目前制造的助听器差不多全都使用晶体管，而且这样更好。

They can be used in devices for which vacuum tube valves were unsuitable, such as in hearing aids designed to fit into the ear .
它们能用在不宜采用真空管的装置上，例如能用在放在耳朵内的助听器里。

Hearing aids . part 5 : nipples for insert earphones
助听器.第5部分:塞入式耳机塞头

Discussion on the hearing aid fitting for deaf children
怎样为聋儿验配好助听器

A . ask client to remove hearing aid and close eyes
嘱受检者取下助听器，闭眼。

Observation of hearing aid effect on 174 deaf children
174例聋幼儿助听效果动态观察

Testing hearing aids with a broad - band noise signal
助听器的宽带噪音信号测试